Home / 8,747.87-12,068.62-5,384.84

Finding the Fourth Proportional to 8,747.87, 12,068.62 and 5,384.84

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Solution

The fourth proportional to 8,747.87, 12,068.62 and 5,384.84 is: 7,428.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.87 : 12,068.62 = 5,384.84 : x
  2. Step 2: Convert to fraction form
    8,747.87/12,068.62 = 5,384.84/x
  3. Step 3: Cross multiply
    8,747.87x = 12,068.62 × 5,384.84
  4. Step 4: Simplify right side
    8,747.87x = 64,987,613.92
  5. Step 5: Solve for x
    x = 64,987,613.92/8,747.87
  6. Step 6: Final answer
    x = 7,428.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.