Home / 10,275.45-15,412.86-3,705.90

Finding the Fourth Proportional to 10,275.45, 15,412.86 and 3,705.90

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Solution

The fourth proportional to 10,275.45, 15,412.86 and 3,705.90 is: 5,558.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,275.45 : 15,412.86 = 3,705.90 : x
  2. Step 2: Convert to fraction form
    10,275.45/15,412.86 = 3,705.90/x
  3. Step 3: Cross multiply
    10,275.45x = 15,412.86 × 3,705.90
  4. Step 4: Simplify right side
    10,275.45x = 57,118,517.87
  5. Step 5: Solve for x
    x = 57,118,517.87/10,275.45
  6. Step 6: Final answer
    x = 5,558.74

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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.