Home / 10,501.25-15,754.95-3,105.90

Finding the Fourth Proportional to 10,501.25, 15,754.95 and 3,105.90

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Solution

The fourth proportional to 10,501.25, 15,754.95 and 3,105.90 is: 4,659.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,501.25 : 15,754.95 = 3,105.90 : x
  2. Step 2: Convert to fraction form
    10,501.25/15,754.95 = 3,105.90/x
  3. Step 3: Cross multiply
    10,501.25x = 15,754.95 × 3,105.90
  4. Step 4: Simplify right side
    10,501.25x = 48,933,299.21
  5. Step 5: Solve for x
    x = 48,933,299.21/10,501.25
  6. Step 6: Final answer
    x = 4,659.76

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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.