Home / 12,516.65-18,780.21-5,493.04

Finding the Fourth Proportional to 12,516.65, 18,780.21 and 5,493.04

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Solution

The fourth proportional to 12,516.65, 18,780.21 and 5,493.04 is: 8,241.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.65 : 18,780.21 = 5,493.04 : x
  2. Step 2: Convert to fraction form
    12,516.65/18,780.21 = 5,493.04/x
  3. Step 3: Cross multiply
    12,516.65x = 18,780.21 × 5,493.04
  4. Step 4: Simplify right side
    12,516.65x = 103,160,444.74
  5. Step 5: Solve for x
    x = 103,160,444.74/12,516.65
  6. Step 6: Final answer
    x = 8,241.86

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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.