Home / 13,618.38-18,799.80-9,088.56

Finding the Fourth Proportional to 13,618.38, 18,799.80 and 9,088.56

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Solution

The fourth proportional to 13,618.38, 18,799.80 and 9,088.56 is: 12,546.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618.38 : 18,799.80 = 9,088.56 : x
  2. Step 2: Convert to fraction form
    13,618.38/18,799.80 = 9,088.56/x
  3. Step 3: Cross multiply
    13,618.38x = 18,799.80 × 9,088.56
  4. Step 4: Simplify right side
    13,618.38x = 170,863,110.29
  5. Step 5: Solve for x
    x = 170,863,110.29/13,618.38
  6. Step 6: Final answer
    x = 12,546.51

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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.