Home / 15,188.18-20,959.72-8,473.64

Finding the Fourth Proportional to 15,188.18, 20,959.72 and 8,473.64

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Solution

The fourth proportional to 15,188.18, 20,959.72 and 8,473.64 is: 11,693.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188.18 : 20,959.72 = 8,473.64 : x
  2. Step 2: Convert to fraction form
    15,188.18/20,959.72 = 8,473.64/x
  3. Step 3: Cross multiply
    15,188.18x = 20,959.72 × 8,473.64
  4. Step 4: Simplify right side
    15,188.18x = 177,605,121.78
  5. Step 5: Solve for x
    x = 177,605,121.78/15,188.18
  6. Step 6: Final answer
    x = 11,693.64

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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.