Home / 13,161.42-19,742.14-6,580.98

Finding the Fourth Proportional to 13,161.42, 19,742.14 and 6,580.98

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Solution

The fourth proportional to 13,161.42, 19,742.14 and 6,580.98 is: 9,871.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161.42 : 19,742.14 = 6,580.98 : x
  2. Step 2: Convert to fraction form
    13,161.42/19,742.14 = 6,580.98/x
  3. Step 3: Cross multiply
    13,161.42x = 19,742.14 × 6,580.98
  4. Step 4: Simplify right side
    13,161.42x = 129,922,628.50
  5. Step 5: Solve for x
    x = 129,922,628.50/13,161.42
  6. Step 6: Final answer
    x = 9,871.48

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.