Home / 15,445.20-23,168.78-5,448.70

Finding the Fourth Proportional to 15,445.20, 23,168.78 and 5,448.70

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Solution

The fourth proportional to 15,445.20, 23,168.78 and 5,448.70 is: 8,173.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,445.20 : 23,168.78 = 5,448.70 : x
  2. Step 2: Convert to fraction form
    15,445.20/23,168.78 = 5,448.70/x
  3. Step 3: Cross multiply
    15,445.20x = 23,168.78 × 5,448.70
  4. Step 4: Simplify right side
    15,445.20x = 126,239,731.59
  5. Step 5: Solve for x
    x = 126,239,731.59/15,445.20
  6. Step 6: Final answer
    x = 8,173.40

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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.