Home / 13,439.71-18,546.53-7,471.23

Finding the Fourth Proportional to 13,439.71, 18,546.53 and 7,471.23

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Solution

The fourth proportional to 13,439.71, 18,546.53 and 7,471.23 is: 10,310.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.71 : 18,546.53 = 7,471.23 : x
  2. Step 2: Convert to fraction form
    13,439.71/18,546.53 = 7,471.23/x
  3. Step 3: Cross multiply
    13,439.71x = 18,546.53 × 7,471.23
  4. Step 4: Simplify right side
    13,439.71x = 138,565,391.33
  5. Step 5: Solve for x
    x = 138,565,391.33/13,439.71
  6. Step 6: Final answer
    x = 10,310.15

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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.