Home / 18,758.89-25,886.95-10,375.39

Finding the Fourth Proportional to 18,758.89, 25,886.95 and 10,375.39

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Solution

The fourth proportional to 18,758.89, 25,886.95 and 10,375.39 is: 14,317.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,758.89 : 25,886.95 = 10,375.39 : x
  2. Step 2: Convert to fraction form
    18,758.89/25,886.95 = 10,375.39/x
  3. Step 3: Cross multiply
    18,758.89x = 25,886.95 × 10,375.39
  4. Step 4: Simplify right side
    18,758.89x = 268,587,202.16
  5. Step 5: Solve for x
    x = 268,587,202.16/18,758.89
  6. Step 6: Final answer
    x = 14,317.86

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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.