Home / 8,840.31-13,264.68-5,142.83

Finding the Fourth Proportional to 8,840.31, 13,264.68 and 5,142.83

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Solution

The fourth proportional to 8,840.31, 13,264.68 and 5,142.83 is: 7,716.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,840.31 : 13,264.68 = 5,142.83 : x
  2. Step 2: Convert to fraction form
    8,840.31/13,264.68 = 5,142.83/x
  3. Step 3: Cross multiply
    8,840.31x = 13,264.68 × 5,142.83
  4. Step 4: Simplify right side
    8,840.31x = 68,217,994.24
  5. Step 5: Solve for x
    x = 68,217,994.24/8,840.31
  6. Step 6: Final answer
    x = 7,716.70

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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.