Home / 10,254.30-15,381.46-2,858.78

Finding the Fourth Proportional to 10,254.30, 15,381.46 and 2,858.78

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Solution

The fourth proportional to 10,254.30, 15,381.46 and 2,858.78 is: 4,288.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,254.30 : 15,381.46 = 2,858.78 : x
  2. Step 2: Convert to fraction form
    10,254.30/15,381.46 = 2,858.78/x
  3. Step 3: Cross multiply
    10,254.30x = 15,381.46 × 2,858.78
  4. Step 4: Simplify right side
    10,254.30x = 43,972,210.22
  5. Step 5: Solve for x
    x = 43,972,210.22/10,254.30
  6. Step 6: Final answer
    x = 4,288.17

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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.