Home / 13,256.16-18,287.37-8,474.85

Finding the Fourth Proportional to 13,256.16, 18,287.37 and 8,474.85

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Solution

The fourth proportional to 13,256.16, 18,287.37 and 8,474.85 is: 11,691.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.16 : 18,287.37 = 8,474.85 : x
  2. Step 2: Convert to fraction form
    13,256.16/18,287.37 = 8,474.85/x
  3. Step 3: Cross multiply
    13,256.16x = 18,287.37 × 8,474.85
  4. Step 4: Simplify right side
    13,256.16x = 154,982,717.64
  5. Step 5: Solve for x
    x = 154,982,717.64/13,256.16
  6. Step 6: Final answer
    x = 11,691.37

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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.