Home / 14,423.18-21,600.20-9,139.82

Finding the Fourth Proportional to 14,423.18, 21,600.20 and 9,139.82

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Solution

The fourth proportional to 14,423.18, 21,600.20 and 9,139.82 is: 13,687.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,423.18 : 21,600.20 = 9,139.82 : x
  2. Step 2: Convert to fraction form
    14,423.18/21,600.20 = 9,139.82/x
  3. Step 3: Cross multiply
    14,423.18x = 21,600.20 × 9,139.82
  4. Step 4: Simplify right side
    14,423.18x = 197,421,939.96
  5. Step 5: Solve for x
    x = 197,421,939.96/14,423.18
  6. Step 6: Final answer
    x = 13,687.82

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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.