Home / 13,440.79-18,546.19-7,472.44

Finding the Fourth Proportional to 13,440.79, 18,546.19 and 7,472.44

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Solution

The fourth proportional to 13,440.79, 18,546.19 and 7,472.44 is: 10,310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.79 : 18,546.19 = 7,472.44 : x
  2. Step 2: Convert to fraction form
    13,440.79/18,546.19 = 7,472.44/x
  3. Step 3: Cross multiply
    13,440.79x = 18,546.19 × 7,472.44
  4. Step 4: Simplify right side
    13,440.79x = 138,585,292.00
  5. Step 5: Solve for x
    x = 138,585,292.00/13,440.79
  6. Step 6: Final answer
    x = 10,310.80

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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.