Home / 13,449.46-20,153.10-8,508.66

Finding the Fourth Proportional to 13,449.46, 20,153.10 and 8,508.66

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Solution

The fourth proportional to 13,449.46, 20,153.10 and 8,508.66 is: 12,749.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.46 : 20,153.10 = 8,508.66 : x
  2. Step 2: Convert to fraction form
    13,449.46/20,153.10 = 8,508.66/x
  3. Step 3: Cross multiply
    13,449.46x = 20,153.10 × 8,508.66
  4. Step 4: Simplify right side
    13,449.46x = 171,475,817.07
  5. Step 5: Solve for x
    x = 171,475,817.07/13,449.46
  6. Step 6: Final answer
    x = 12,749.65

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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.