Home / 12,541.20-18,811.80-7,612.26

Finding the Fourth Proportional to 12,541.20, 18,811.80 and 7,612.26

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Solution

The fourth proportional to 12,541.20, 18,811.80 and 7,612.26 is: 11,418.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,541.20 : 18,811.80 = 7,612.26 : x
  2. Step 2: Convert to fraction form
    12,541.20/18,811.80 = 7,612.26/x
  3. Step 3: Cross multiply
    12,541.20x = 18,811.80 × 7,612.26
  4. Step 4: Simplify right side
    12,541.20x = 143,200,312.67
  5. Step 5: Solve for x
    x = 143,200,312.67/12,541.20
  6. Step 6: Final answer
    x = 11,418.39

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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.