Home / 15,117.44-20,863.38-8,404.38

Finding the Fourth Proportional to 15,117.44, 20,863.38 and 8,404.38

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Solution

The fourth proportional to 15,117.44, 20,863.38 and 8,404.38 is: 11,598.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,117.44 : 20,863.38 = 8,404.38 : x
  2. Step 2: Convert to fraction form
    15,117.44/20,863.38 = 8,404.38/x
  3. Step 3: Cross multiply
    15,117.44x = 20,863.38 × 8,404.38
  4. Step 4: Simplify right side
    15,117.44x = 175,343,773.60
  5. Step 5: Solve for x
    x = 175,343,773.60/15,117.44
  6. Step 6: Final answer
    x = 11,598.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.