Home / 15,081.14-20,807.76-11,884.52

Finding the Fourth Proportional to 15,081.14, 20,807.76 and 11,884.52

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Solution

The fourth proportional to 15,081.14, 20,807.76 and 11,884.52 is: 16,397.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,081.14 : 20,807.76 = 11,884.52 : x
  2. Step 2: Convert to fraction form
    15,081.14/20,807.76 = 11,884.52/x
  3. Step 3: Cross multiply
    15,081.14x = 20,807.76 × 11,884.52
  4. Step 4: Simplify right side
    15,081.14x = 247,290,239.88
  5. Step 5: Solve for x
    x = 247,290,239.88/15,081.14
  6. Step 6: Final answer
    x = 16,397.32

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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.