Home / 9,962.40-13,747.20-9,626.88

Finding the Fourth Proportional to 9,962.40, 13,747.20 and 9,626.88

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Solution

The fourth proportional to 9,962.40, 13,747.20 and 9,626.88 is: 13,284.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,962.40 : 13,747.20 = 9,626.88 : x
  2. Step 2: Convert to fraction form
    9,962.40/13,747.20 = 9,626.88/x
  3. Step 3: Cross multiply
    9,962.40x = 13,747.20 × 9,626.88
  4. Step 4: Simplify right side
    9,962.40x = 132,342,644.74
  5. Step 5: Solve for x
    x = 132,342,644.74/9,962.40
  6. Step 6: Final answer
    x = 13,284.21

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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.