Home / 8,559.30-12,841.20-2,715.90

Finding the Fourth Proportional to 8,559.30, 12,841.20 and 2,715.90

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Solution

The fourth proportional to 8,559.30, 12,841.20 and 2,715.90 is: 4,074.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.30 : 12,841.20 = 2,715.90 : x
  2. Step 2: Convert to fraction form
    8,559.30/12,841.20 = 2,715.90/x
  3. Step 3: Cross multiply
    8,559.30x = 12,841.20 × 2,715.90
  4. Step 4: Simplify right side
    8,559.30x = 34,875,415.08
  5. Step 5: Solve for x
    x = 34,875,415.08/8,559.30
  6. Step 6: Final answer
    x = 4,074.56

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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.