Home / 9,981.84-14,974.56-4,138.92

Finding the Fourth Proportional to 9,981.84, 14,974.56 and 4,138.92

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Solution

The fourth proportional to 9,981.84, 14,974.56 and 4,138.92 is: 6,209.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,981.84 : 14,974.56 = 4,138.92 : x
  2. Step 2: Convert to fraction form
    9,981.84/14,974.56 = 4,138.92/x
  3. Step 3: Cross multiply
    9,981.84x = 14,974.56 × 4,138.92
  4. Step 4: Simplify right side
    9,981.84x = 61,978,505.88
  5. Step 5: Solve for x
    x = 61,978,505.88/9,981.84
  6. Step 6: Final answer
    x = 6,209.13

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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.