Home / 10,240.60-15,360.16-3,999.44

Finding the Fourth Proportional to 10,240.60, 15,360.16 and 3,999.44

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Solution

The fourth proportional to 10,240.60, 15,360.16 and 3,999.44 is: 5,998.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,240.60 : 15,360.16 = 3,999.44 : x
  2. Step 2: Convert to fraction form
    10,240.60/15,360.16 = 3,999.44/x
  3. Step 3: Cross multiply
    10,240.60x = 15,360.16 × 3,999.44
  4. Step 4: Simplify right side
    10,240.60x = 61,432,038.31
  5. Step 5: Solve for x
    x = 61,432,038.31/10,240.60
  6. Step 6: Final answer
    x = 5,998.87

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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.