Home / 11,320.74-16,981.65-4,747.14

Finding the Fourth Proportional to 11,320.74, 16,981.65 and 4,747.14

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Solution

The fourth proportional to 11,320.74, 16,981.65 and 4,747.14 is: 7,120.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.74 : 16,981.65 = 4,747.14 : x
  2. Step 2: Convert to fraction form
    11,320.74/16,981.65 = 4,747.14/x
  3. Step 3: Cross multiply
    11,320.74x = 16,981.65 × 4,747.14
  4. Step 4: Simplify right side
    11,320.74x = 80,614,269.98
  5. Step 5: Solve for x
    x = 80,614,269.98/11,320.74
  6. Step 6: Final answer
    x = 7,120.94

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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.