Home / 13,351.35-18,424.26-7,682.21

Finding the Fourth Proportional to 13,351.35, 18,424.26 and 7,682.21

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Solution

The fourth proportional to 13,351.35, 18,424.26 and 7,682.21 is: 10,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.35 : 18,424.26 = 7,682.21 : x
  2. Step 2: Convert to fraction form
    13,351.35/18,424.26 = 7,682.21/x
  3. Step 3: Cross multiply
    13,351.35x = 18,424.26 × 7,682.21
  4. Step 4: Simplify right side
    13,351.35x = 141,539,011.38
  5. Step 5: Solve for x
    x = 141,539,011.38/13,351.35
  6. Step 6: Final answer
    x = 10,601.10

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Half scale
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Double scale
Find fourth proportional to 13,352.35, 18,425.64 and 7,683.21
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.