Home / 16,428.85-22,672.28-9,161.11

Finding the Fourth Proportional to 16,428.85, 22,672.28 and 9,161.11

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Solution

The fourth proportional to 16,428.85, 22,672.28 and 9,161.11 is: 12,642.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,428.85 : 22,672.28 = 9,161.11 : x
  2. Step 2: Convert to fraction form
    16,428.85/22,672.28 = 9,161.11/x
  3. Step 3: Cross multiply
    16,428.85x = 22,672.28 × 9,161.11
  4. Step 4: Simplify right side
    16,428.85x = 207,703,211.24
  5. Step 5: Solve for x
    x = 207,703,211.24/16,428.85
  6. Step 6: Final answer
    x = 12,642.59

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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.