Home / 9,871.42-13,619.01-6,336.58

Finding the Fourth Proportional to 9,871.42, 13,619.01 and 6,336.58

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Solution

The fourth proportional to 9,871.42, 13,619.01 and 6,336.58 is: 8,742.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,871.42 : 13,619.01 = 6,336.58 : x
  2. Step 2: Convert to fraction form
    9,871.42/13,619.01 = 6,336.58/x
  3. Step 3: Cross multiply
    9,871.42x = 13,619.01 × 6,336.58
  4. Step 4: Simplify right side
    9,871.42x = 86,297,946.39
  5. Step 5: Solve for x
    x = 86,297,946.39/9,871.42
  6. Step 6: Final answer
    x = 8,742.20

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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.