Home / 13,247.31-18,267.42-9,884.79

Finding the Fourth Proportional to 13,247.31, 18,267.42 and 9,884.79

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Solution

The fourth proportional to 13,247.31, 18,267.42 and 9,884.79 is: 13,630.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.31 : 18,267.42 = 9,884.79 : x
  2. Step 2: Convert to fraction form
    13,247.31/18,267.42 = 9,884.79/x
  3. Step 3: Cross multiply
    13,247.31x = 18,267.42 × 9,884.79
  4. Step 4: Simplify right side
    13,247.31x = 180,569,610.54
  5. Step 5: Solve for x
    x = 180,569,610.54/13,247.31
  6. Step 6: Final answer
    x = 13,630.66

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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.