Home / 15,432.09-21,296.17-8,717.59

Finding the Fourth Proportional to 15,432.09, 21,296.17 and 8,717.59

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Solution

The fourth proportional to 15,432.09, 21,296.17 and 8,717.59 is: 12,030.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432.09 : 21,296.17 = 8,717.59 : x
  2. Step 2: Convert to fraction form
    15,432.09/21,296.17 = 8,717.59/x
  3. Step 3: Cross multiply
    15,432.09x = 21,296.17 × 8,717.59
  4. Step 4: Simplify right side
    15,432.09x = 185,651,267.11
  5. Step 5: Solve for x
    x = 185,651,267.11/15,432.09
  6. Step 6: Final answer
    x = 12,030.21

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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.