Home / 12,559.20-18,841.95-8,868.65

Finding the Fourth Proportional to 12,559.20, 18,841.95 and 8,868.65

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Solution

The fourth proportional to 12,559.20, 18,841.95 and 8,868.65 is: 13,305.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559.20 : 18,841.95 = 8,868.65 : x
  2. Step 2: Convert to fraction form
    12,559.20/18,841.95 = 8,868.65/x
  3. Step 3: Cross multiply
    12,559.20x = 18,841.95 × 8,868.65
  4. Step 4: Simplify right side
    12,559.20x = 167,102,565.66
  5. Step 5: Solve for x
    x = 167,102,565.66/12,559.20
  6. Step 6: Final answer
    x = 13,305.19

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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.