Home / 15,071.26-20,793.36-9,100.66

Finding the Fourth Proportional to 15,071.26, 20,793.36 and 9,100.66

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Solution

The fourth proportional to 15,071.26, 20,793.36 and 9,100.66 is: 12,555.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,071.26 : 20,793.36 = 9,100.66 : x
  2. Step 2: Convert to fraction form
    15,071.26/20,793.36 = 9,100.66/x
  3. Step 3: Cross multiply
    15,071.26x = 20,793.36 × 9,100.66
  4. Step 4: Simplify right side
    15,071.26x = 189,233,299.62
  5. Step 5: Solve for x
    x = 189,233,299.62/15,071.26
  6. Step 6: Final answer
    x = 12,555.90

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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.