Home / 16,381.28-22,606.08-9,211.21

Finding the Fourth Proportional to 16,381.28, 22,606.08 and 9,211.21

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Solution

The fourth proportional to 16,381.28, 22,606.08 and 9,211.21 is: 12,711.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,381.28 : 22,606.08 = 9,211.21 : x
  2. Step 2: Convert to fraction form
    16,381.28/22,606.08 = 9,211.21/x
  3. Step 3: Cross multiply
    16,381.28x = 22,606.08 × 9,211.21
  4. Step 4: Simplify right side
    16,381.28x = 208,229,259.10
  5. Step 5: Solve for x
    x = 208,229,259.10/16,381.28
  6. Step 6: Final answer
    x = 12,711.41

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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.