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Finding the Fourth Proportional to 16,170.71, 22,315.02 and 9,000.39

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Solution

The fourth proportional to 16,170.71, 22,315.02 and 9,000.39 is: 12,420.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,170.71 : 22,315.02 = 9,000.39 : x
  2. Step 2: Convert to fraction form
    16,170.71/22,315.02 = 9,000.39/x
  3. Step 3: Cross multiply
    16,170.71x = 22,315.02 × 9,000.39
  4. Step 4: Simplify right side
    16,170.71x = 200,843,882.86
  5. Step 5: Solve for x
    x = 200,843,882.86/16,170.71
  6. Step 6: Final answer
    x = 12,420.23

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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.