Home / 14,490.20-21,723.15-7,564.70

Finding the Fourth Proportional to 14,490.20, 21,723.15 and 7,564.70

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Solution

The fourth proportional to 14,490.20, 21,723.15 and 7,564.70 is: 11,340.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.20 : 21,723.15 = 7,564.70 : x
  2. Step 2: Convert to fraction form
    14,490.20/21,723.15 = 7,564.70/x
  3. Step 3: Cross multiply
    14,490.20x = 21,723.15 × 7,564.70
  4. Step 4: Simplify right side
    14,490.20x = 164,329,112.81
  5. Step 5: Solve for x
    x = 164,329,112.81/14,490.20
  6. Step 6: Final answer
    x = 11,340.71

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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.