Home / 10,280.60-15,420.96-3,260.48

Finding the Fourth Proportional to 10,280.60, 15,420.96 and 3,260.48

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Solution

The fourth proportional to 10,280.60, 15,420.96 and 3,260.48 is: 4,890.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.60 : 15,420.96 = 3,260.48 : x
  2. Step 2: Convert to fraction form
    10,280.60/15,420.96 = 3,260.48/x
  3. Step 3: Cross multiply
    10,280.60x = 15,420.96 × 3,260.48
  4. Step 4: Simplify right side
    10,280.60x = 50,279,731.66
  5. Step 5: Solve for x
    x = 50,279,731.66/10,280.60
  6. Step 6: Final answer
    x = 4,890.74

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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.