Home / 8,560.38-11,812.87-4,782.78

Finding the Fourth Proportional to 8,560.38, 11,812.87 and 4,782.78

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Solution

The fourth proportional to 8,560.38, 11,812.87 and 4,782.78 is: 6,599.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.38 : 11,812.87 = 4,782.78 : x
  2. Step 2: Convert to fraction form
    8,560.38/11,812.87 = 4,782.78/x
  3. Step 3: Cross multiply
    8,560.38x = 11,812.87 × 4,782.78
  4. Step 4: Simplify right side
    8,560.38x = 56,498,358.38
  5. Step 5: Solve for x
    x = 56,498,358.38/8,560.38
  6. Step 6: Final answer
    x = 6,599.98

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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.