Home / 8,830.60-12,187.38-5,695.90

Finding the Fourth Proportional to 8,830.60, 12,187.38 and 5,695.90

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Solution

The fourth proportional to 8,830.60, 12,187.38 and 5,695.90 is: 7,861.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,830.60 : 12,187.38 = 5,695.90 : x
  2. Step 2: Convert to fraction form
    8,830.60/12,187.38 = 5,695.90/x
  3. Step 3: Cross multiply
    8,830.60x = 12,187.38 × 5,695.90
  4. Step 4: Simplify right side
    8,830.60x = 69,418,097.74
  5. Step 5: Solve for x
    x = 69,418,097.74/8,830.60
  6. Step 6: Final answer
    x = 7,861.09

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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.