Home / 15,071.47-20,816.19-12,057.05

Finding the Fourth Proportional to 15,071.47, 20,816.19 and 12,057.05

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Solution

The fourth proportional to 15,071.47, 20,816.19 and 12,057.05 is: 16,652.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,071.47 : 20,816.19 = 12,057.05 : x
  2. Step 2: Convert to fraction form
    15,071.47/20,816.19 = 12,057.05/x
  3. Step 3: Cross multiply
    15,071.47x = 20,816.19 × 12,057.05
  4. Step 4: Simplify right side
    15,071.47x = 250,981,895.68
  5. Step 5: Solve for x
    x = 250,981,895.68/15,071.47
  6. Step 6: Final answer
    x = 16,652.78

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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.