Home / 20,966.16-28,927.10-12,463.95

Finding the Fourth Proportional to 20,966.16, 28,927.10 and 12,463.95

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Solution

The fourth proportional to 20,966.16, 28,927.10 and 12,463.95 is: 17,196.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,966.16 : 28,927.10 = 12,463.95 : x
  2. Step 2: Convert to fraction form
    20,966.16/28,927.10 = 12,463.95/x
  3. Step 3: Cross multiply
    20,966.16x = 28,927.10 × 12,463.95
  4. Step 4: Simplify right side
    20,966.16x = 360,545,865.73
  5. Step 5: Solve for x
    x = 360,545,865.73/20,966.16
  6. Step 6: Final answer
    x = 17,196.56

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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.