Home / 13,227.60-18,227.76-9,440.08

Finding the Fourth Proportional to 13,227.60, 18,227.76 and 9,440.08

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Solution

The fourth proportional to 13,227.60, 18,227.76 and 9,440.08 is: 13,008.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,227.60 : 18,227.76 = 9,440.08 : x
  2. Step 2: Convert to fraction form
    13,227.60/18,227.76 = 9,440.08/x
  3. Step 3: Cross multiply
    13,227.60x = 18,227.76 × 9,440.08
  4. Step 4: Simplify right side
    13,227.60x = 172,071,512.62
  5. Step 5: Solve for x
    x = 172,071,512.62/13,227.60
  6. Step 6: Final answer
    x = 13,008.52

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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.