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Finding the Fourth Proportional to 16,320.25, 22,521.95 and 8,868.25

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Solution

The fourth proportional to 16,320.25, 22,521.95 and 8,868.25 is: 12,238.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,320.25 : 22,521.95 = 8,868.25 : x
  2. Step 2: Convert to fraction form
    16,320.25/22,521.95 = 8,868.25/x
  3. Step 3: Cross multiply
    16,320.25x = 22,521.95 × 8,868.25
  4. Step 4: Simplify right side
    16,320.25x = 199,730,283.09
  5. Step 5: Solve for x
    x = 199,730,283.09/16,320.25
  6. Step 6: Final answer
    x = 12,238.19

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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.