Home / 10,251.60-15,378.26-2,856.09

Finding the Fourth Proportional to 10,251.60, 15,378.26 and 2,856.09

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Solution

The fourth proportional to 10,251.60, 15,378.26 and 2,856.09 is: 4,284.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,251.60 : 15,378.26 = 2,856.09 : x
  2. Step 2: Convert to fraction form
    10,251.60/15,378.26 = 2,856.09/x
  3. Step 3: Cross multiply
    10,251.60x = 15,378.26 × 2,856.09
  4. Step 4: Simplify right side
    10,251.60x = 43,921,737.99
  5. Step 5: Solve for x
    x = 43,921,737.99/10,251.60
  6. Step 6: Final answer
    x = 4,284.38

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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.