Home / 15,478.40-23,217.60-6,707.20

Finding the Fourth Proportional to 15,478.40, 23,217.60 and 6,707.20

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Solution

The fourth proportional to 15,478.40, 23,217.60 and 6,707.20 is: 10,060.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,478.40 : 23,217.60 = 6,707.20 : x
  2. Step 2: Convert to fraction form
    15,478.40/23,217.60 = 6,707.20/x
  3. Step 3: Cross multiply
    15,478.40x = 23,217.60 × 6,707.20
  4. Step 4: Simplify right side
    15,478.40x = 155,725,086.72
  5. Step 5: Solve for x
    x = 155,725,086.72/15,478.40
  6. Step 6: Final answer
    x = 10,060.80

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Similar ratio
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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.