Home / 15,177.48-20,945.34-8,463.60

Finding the Fourth Proportional to 15,177.48, 20,945.34 and 8,463.60

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Solution

The fourth proportional to 15,177.48, 20,945.34 and 8,463.60 is: 11,680.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,177.48 : 20,945.34 = 8,463.60 : x
  2. Step 2: Convert to fraction form
    15,177.48/20,945.34 = 8,463.60/x
  3. Step 3: Cross multiply
    15,177.48x = 20,945.34 × 8,463.60
  4. Step 4: Simplify right side
    15,177.48x = 177,272,979.62
  5. Step 5: Solve for x
    x = 177,272,979.62/15,177.48
  6. Step 6: Final answer
    x = 11,680.00

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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.