Home / 15,123.84-22,688.18-5,265.92

Finding the Fourth Proportional to 15,123.84, 22,688.18 and 5,265.92

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Solution

The fourth proportional to 15,123.84, 22,688.18 and 5,265.92 is: 7,899.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,123.84 : 22,688.18 = 5,265.92 : x
  2. Step 2: Convert to fraction form
    15,123.84/22,688.18 = 5,265.92/x
  3. Step 3: Cross multiply
    15,123.84x = 22,688.18 × 5,265.92
  4. Step 4: Simplify right side
    15,123.84x = 119,474,140.83
  5. Step 5: Solve for x
    x = 119,474,140.83/15,123.84
  6. Step 6: Final answer
    x = 7,899.72

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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.