Home / 10,254.39-15,381.12-2,858.70

Finding the Fourth Proportional to 10,254.39, 15,381.12 and 2,858.70

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Solution

The fourth proportional to 10,254.39, 15,381.12 and 2,858.70 is: 4,287.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,254.39 : 15,381.12 = 2,858.70 : x
  2. Step 2: Convert to fraction form
    10,254.39/15,381.12 = 2,858.70/x
  3. Step 3: Cross multiply
    10,254.39x = 15,381.12 × 2,858.70
  4. Step 4: Simplify right side
    10,254.39x = 43,970,007.74
  5. Step 5: Solve for x
    x = 43,970,007.74/10,254.39
  6. Step 6: Final answer
    x = 4,287.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.