Home / 9,981.20-14,972.56-5,821.62

Finding the Fourth Proportional to 9,981.20, 14,972.56 and 5,821.62

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Solution

The fourth proportional to 9,981.20, 14,972.56 and 5,821.62 is: 8,732.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,981.20 : 14,972.56 = 5,821.62 : x
  2. Step 2: Convert to fraction form
    9,981.20/14,972.56 = 5,821.62/x
  3. Step 3: Cross multiply
    9,981.20x = 14,972.56 × 5,821.62
  4. Step 4: Simplify right side
    9,981.20x = 87,164,525.64
  5. Step 5: Solve for x
    x = 87,164,525.64/9,981.20
  6. Step 6: Final answer
    x = 8,732.87

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1.5x scale

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.