Home / 21,713.54-29,966.13-12,154.26

Finding the Fourth Proportional to 21,713.54, 29,966.13 and 12,154.26

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Solution

The fourth proportional to 21,713.54, 29,966.13 and 12,154.26 is: 16,773.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,713.54 : 29,966.13 = 12,154.26 : x
  2. Step 2: Convert to fraction form
    21,713.54/29,966.13 = 12,154.26/x
  3. Step 3: Cross multiply
    21,713.54x = 29,966.13 × 12,154.26
  4. Step 4: Simplify right side
    21,713.54x = 364,216,135.21
  5. Step 5: Solve for x
    x = 364,216,135.21/21,713.54
  6. Step 6: Final answer
    x = 16,773.69

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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.