Home / 12,528.90-17,295.55-7,425.24

Finding the Fourth Proportional to 12,528.90, 17,295.55 and 7,425.24

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Solution

The fourth proportional to 12,528.90, 17,295.55 and 7,425.24 is: 10,250.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.90 : 17,295.55 = 7,425.24 : x
  2. Step 2: Convert to fraction form
    12,528.90/17,295.55 = 7,425.24/x
  3. Step 3: Cross multiply
    12,528.90x = 17,295.55 × 7,425.24
  4. Step 4: Simplify right side
    12,528.90x = 128,423,638.35
  5. Step 5: Solve for x
    x = 128,423,638.35/12,528.90
  6. Step 6: Final answer
    x = 10,250.20

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Double scale
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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.