Home / 15,314.52-21,136.00-9,344.92

Finding the Fourth Proportional to 15,314.52, 21,136.00 and 9,344.92

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Solution

The fourth proportional to 15,314.52, 21,136.00 and 9,344.92 is: 12,897.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.52 : 21,136.00 = 9,344.92 : x
  2. Step 2: Convert to fraction form
    15,314.52/21,136.00 = 9,344.92/x
  3. Step 3: Cross multiply
    15,314.52x = 21,136.00 × 9,344.92
  4. Step 4: Simplify right side
    15,314.52x = 197,514,182.40
  5. Step 5: Solve for x
    x = 197,514,182.40/15,314.52
  6. Step 6: Final answer
    x = 12,897.18

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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.