Home / 10,511.38-15,744.45-4,956.40

Finding the Fourth Proportional to 10,511.38, 15,744.45 and 4,956.40

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Solution

The fourth proportional to 10,511.38, 15,744.45 and 4,956.40 is: 7,423.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.38 : 15,744.45 = 4,956.40 : x
  2. Step 2: Convert to fraction form
    10,511.38/15,744.45 = 4,956.40/x
  3. Step 3: Cross multiply
    10,511.38x = 15,744.45 × 4,956.40
  4. Step 4: Simplify right side
    10,511.38x = 78,035,791.98
  5. Step 5: Solve for x
    x = 78,035,791.98/10,511.38
  6. Step 6: Final answer
    x = 7,423.93

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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.