Home / 15,123.60-22,686.62-5,262.66

Finding the Fourth Proportional to 15,123.60, 22,686.62 and 5,262.66

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Solution

The fourth proportional to 15,123.60, 22,686.62 and 5,262.66 is: 7,894.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,123.60 : 22,686.62 = 5,262.66 : x
  2. Step 2: Convert to fraction form
    15,123.60/22,686.62 = 5,262.66/x
  3. Step 3: Cross multiply
    15,123.60x = 22,686.62 × 5,262.66
  4. Step 4: Simplify right side
    15,123.60x = 119,391,941.30
  5. Step 5: Solve for x
    x = 119,391,941.30/15,123.60
  6. Step 6: Final answer
    x = 7,894.41

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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.