Home / 10,252.30-15,378.46-2,856.78

Finding the Fourth Proportional to 10,252.30, 15,378.46 and 2,856.78

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Solution

The fourth proportional to 10,252.30, 15,378.46 and 2,856.78 is: 4,285.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,252.30 : 15,378.46 = 2,856.78 : x
  2. Step 2: Convert to fraction form
    10,252.30/15,378.46 = 2,856.78/x
  3. Step 3: Cross multiply
    10,252.30x = 15,378.46 × 2,856.78
  4. Step 4: Simplify right side
    10,252.30x = 43,932,876.96
  5. Step 5: Solve for x
    x = 43,932,876.96/10,252.30
  6. Step 6: Final answer
    x = 4,285.17

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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.