Home / 13,439.39-18,546.37-7,471.10

Finding the Fourth Proportional to 13,439.39, 18,546.37 and 7,471.10

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Solution

The fourth proportional to 13,439.39, 18,546.37 and 7,471.10 is: 10,310.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.39 : 18,546.37 = 7,471.10 : x
  2. Step 2: Convert to fraction form
    13,439.39/18,546.37 = 7,471.10/x
  3. Step 3: Cross multiply
    13,439.39x = 18,546.37 × 7,471.10
  4. Step 4: Simplify right side
    13,439.39x = 138,561,812.60
  5. Step 5: Solve for x
    x = 138,561,812.60/13,439.39
  6. Step 6: Final answer
    x = 10,310.13

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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.