Home / 10,260.60-15,387.30-5,328.60

Finding the Fourth Proportional to 10,260.60, 15,387.30 and 5,328.60

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Solution

The fourth proportional to 10,260.60, 15,387.30 and 5,328.60 is: 7,991.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,260.60 : 15,387.30 = 5,328.60 : x
  2. Step 2: Convert to fraction form
    10,260.60/15,387.30 = 5,328.60/x
  3. Step 3: Cross multiply
    10,260.60x = 15,387.30 × 5,328.60
  4. Step 4: Simplify right side
    10,260.60x = 81,992,766.78
  5. Step 5: Solve for x
    x = 81,992,766.78/10,260.60
  6. Step 6: Final answer
    x = 7,991.03

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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.