Home / 15,550.28-21,461.88-9,177

Finding the Fourth Proportional to 15,550.28, 21,461.88 and 9,177

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Solution

The fourth proportional to 15,550.28, 21,461.88 and 9,177 is: 12,665.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,550.28 : 21,461.88 = 9,177 : x
  2. Step 2: Convert to fraction form
    15,550.28/21,461.88 = 9,177/x
  3. Step 3: Cross multiply
    15,550.28x = 21,461.88 × 9,177
  4. Step 4: Simplify right side
    15,550.28x = 196,955,672.76
  5. Step 5: Solve for x
    x = 196,955,672.76/15,550.28
  6. Step 6: Final answer
    x = 12,665.73

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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.