Home / 14,082.28-21,123.72-4,221.74

Finding the Fourth Proportional to 14,082.28, 21,123.72 and 4,221.74

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Solution

The fourth proportional to 14,082.28, 21,123.72 and 4,221.74 is: 6,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,082.28 : 21,123.72 = 4,221.74 : x
  2. Step 2: Convert to fraction form
    14,082.28/21,123.72 = 4,221.74/x
  3. Step 3: Cross multiply
    14,082.28x = 21,123.72 × 4,221.74
  4. Step 4: Simplify right side
    14,082.28x = 89,178,906.48
  5. Step 5: Solve for x
    x = 89,178,906.48/14,082.28
  6. Step 6: Final answer
    x = 6,332.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.