Home / 8,861.03-13,291.55-8,319.74

Finding the Fourth Proportional to 8,861.03, 13,291.55 and 8,319.74

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Solution

The fourth proportional to 8,861.03, 13,291.55 and 8,319.74 is: 12,479.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.03 : 13,291.55 = 8,319.74 : x
  2. Step 2: Convert to fraction form
    8,861.03/13,291.55 = 8,319.74/x
  3. Step 3: Cross multiply
    8,861.03x = 13,291.55 × 8,319.74
  4. Step 4: Simplify right side
    8,861.03x = 110,582,240.20
  5. Step 5: Solve for x
    x = 110,582,240.20/8,861.03
  6. Step 6: Final answer
    x = 12,479.62

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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.