Home / 8,861.20-13,291.80-3,925.60

Finding the Fourth Proportional to 8,861.20, 13,291.80 and 3,925.60

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Solution

The fourth proportional to 8,861.20, 13,291.80 and 3,925.60 is: 5,888.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.20 : 13,291.80 = 3,925.60 : x
  2. Step 2: Convert to fraction form
    8,861.20/13,291.80 = 3,925.60/x
  3. Step 3: Cross multiply
    8,861.20x = 13,291.80 × 3,925.60
  4. Step 4: Simplify right side
    8,861.20x = 52,178,290.08
  5. Step 5: Solve for x
    x = 52,178,290.08/8,861.20
  6. Step 6: Final answer
    x = 5,888.40

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Similar ratio
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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.