Home / 12,531.54-17,254.07-10,639.38

Finding the Fourth Proportional to 12,531.54, 17,254.07 and 10,639.38

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Solution

The fourth proportional to 12,531.54, 17,254.07 and 10,639.38 is: 14,648.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.54 : 17,254.07 = 10,639.38 : x
  2. Step 2: Convert to fraction form
    12,531.54/17,254.07 = 10,639.38/x
  3. Step 3: Cross multiply
    12,531.54x = 17,254.07 × 10,639.38
  4. Step 4: Simplify right side
    12,531.54x = 183,572,607.28
  5. Step 5: Solve for x
    x = 183,572,607.28/12,531.54
  6. Step 6: Final answer
    x = 14,648.85

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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.