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Finding the Fourth Proportional to 12,730.59, 17,569.17 and 7,424.28

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Solution

The fourth proportional to 12,730.59, 17,569.17 and 7,424.28 is: 10,246.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,730.59 : 17,569.17 = 7,424.28 : x
  2. Step 2: Convert to fraction form
    12,730.59/17,569.17 = 7,424.28/x
  3. Step 3: Cross multiply
    12,730.59x = 17,569.17 × 7,424.28
  4. Step 4: Simplify right side
    12,730.59x = 130,438,437.45
  5. Step 5: Solve for x
    x = 130,438,437.45/12,730.59
  6. Step 6: Final answer
    x = 10,246.06

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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.