Home / 14,658.74-21,988.11-4,128.76

Finding the Fourth Proportional to 14,658.74, 21,988.11 and 4,128.76

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Solution

The fourth proportional to 14,658.74, 21,988.11 and 4,128.76 is: 6,193.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,658.74 : 21,988.11 = 4,128.76 : x
  2. Step 2: Convert to fraction form
    14,658.74/21,988.11 = 4,128.76/x
  3. Step 3: Cross multiply
    14,658.74x = 21,988.11 × 4,128.76
  4. Step 4: Simplify right side
    14,658.74x = 90,783,629.04
  5. Step 5: Solve for x
    x = 90,783,629.04/14,658.74
  6. Step 6: Final answer
    x = 6,193.14

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Similar ratio
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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.