Home / 8,331.16-12,498.78-2,785.10

Finding the Fourth Proportional to 8,331.16, 12,498.78 and 2,785.10

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Solution

The fourth proportional to 8,331.16, 12,498.78 and 2,785.10 is: 4,178.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.16 : 12,498.78 = 2,785.10 : x
  2. Step 2: Convert to fraction form
    8,331.16/12,498.78 = 2,785.10/x
  3. Step 3: Cross multiply
    8,331.16x = 12,498.78 × 2,785.10
  4. Step 4: Simplify right side
    8,331.16x = 34,810,352.18
  5. Step 5: Solve for x
    x = 34,810,352.18/8,331.16
  6. Step 6: Final answer
    x = 4,178.33

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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.