Home / 15,499.74-23,255.82-5,639.70

Finding the Fourth Proportional to 15,499.74, 23,255.82 and 5,639.70

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Solution

The fourth proportional to 15,499.74, 23,255.82 and 5,639.70 is: 8,461.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,499.74 : 23,255.82 = 5,639.70 : x
  2. Step 2: Convert to fraction form
    15,499.74/23,255.82 = 5,639.70/x
  3. Step 3: Cross multiply
    15,499.74x = 23,255.82 × 5,639.70
  4. Step 4: Simplify right side
    15,499.74x = 131,155,848.05
  5. Step 5: Solve for x
    x = 131,155,848.05/15,499.74
  6. Step 6: Final answer
    x = 8,461.81

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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.