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Finding the Fourth Proportional to 8,860.76, 13,291.13 and 2,620.83

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Solution

The fourth proportional to 8,860.76, 13,291.13 and 2,620.83 is: 3,931.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.76 : 13,291.13 = 2,620.83 : x
  2. Step 2: Convert to fraction form
    8,860.76/13,291.13 = 2,620.83/x
  3. Step 3: Cross multiply
    8,860.76x = 13,291.13 × 2,620.83
  4. Step 4: Simplify right side
    8,860.76x = 34,833,798.79
  5. Step 5: Solve for x
    x = 34,833,798.79/8,860.76
  6. Step 6: Final answer
    x = 3,931.25

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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.