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Finding the Fourth Proportional to 16,642.68, 22,966.92 and 9,190.68

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Solution

The fourth proportional to 16,642.68, 22,966.92 and 9,190.68 is: 12,683.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,642.68 : 22,966.92 = 9,190.68 : x
  2. Step 2: Convert to fraction form
    16,642.68/22,966.92 = 9,190.68/x
  3. Step 3: Cross multiply
    16,642.68x = 22,966.92 × 9,190.68
  4. Step 4: Simplify right side
    16,642.68x = 211,081,612.31
  5. Step 5: Solve for x
    x = 211,081,612.31/16,642.68
  6. Step 6: Final answer
    x = 12,683.15

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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.