Home / 9,962.28-13,747.59-6,429.06

Finding the Fourth Proportional to 9,962.28, 13,747.59 and 6,429.06

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Solution

The fourth proportional to 9,962.28, 13,747.59 and 6,429.06 is: 8,871.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,962.28 : 13,747.59 = 6,429.06 : x
  2. Step 2: Convert to fraction form
    9,962.28/13,747.59 = 6,429.06/x
  3. Step 3: Cross multiply
    9,962.28x = 13,747.59 × 6,429.06
  4. Step 4: Simplify right side
    9,962.28x = 88,384,080.97
  5. Step 5: Solve for x
    x = 88,384,080.97/9,962.28
  6. Step 6: Final answer
    x = 8,871.87

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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.