Home / 13,498.65-20,266.20-8,577.90

Finding the Fourth Proportional to 13,498.65, 20,266.20 and 8,577.90

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Solution

The fourth proportional to 13,498.65, 20,266.20 and 8,577.90 is: 12,878.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,498.65 : 20,266.20 = 8,577.90 : x
  2. Step 2: Convert to fraction form
    13,498.65/20,266.20 = 8,577.90/x
  3. Step 3: Cross multiply
    13,498.65x = 20,266.20 × 8,577.90
  4. Step 4: Simplify right side
    13,498.65x = 173,841,436.98
  5. Step 5: Solve for x
    x = 173,841,436.98/13,498.65
  6. Step 6: Final answer
    x = 12,878.43

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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.