Home / 10,002.10-14,981.55-5,379.70

Finding the Fourth Proportional to 10,002.10, 14,981.55 and 5,379.70

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Solution

The fourth proportional to 10,002.10, 14,981.55 and 5,379.70 is: 8,057.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,002.10 : 14,981.55 = 5,379.70 : x
  2. Step 2: Convert to fraction form
    10,002.10/14,981.55 = 5,379.70/x
  3. Step 3: Cross multiply
    10,002.10x = 14,981.55 × 5,379.70
  4. Step 4: Simplify right side
    10,002.10x = 80,596,244.54
  5. Step 5: Solve for x
    x = 80,596,244.54/10,002.10
  6. Step 6: Final answer
    x = 8,057.93

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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.