Home / 10,276.12-15,420.30-4,432.60

Finding the Fourth Proportional to 10,276.12, 15,420.30 and 4,432.60

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Solution

The fourth proportional to 10,276.12, 15,420.30 and 4,432.60 is: 6,651.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,276.12 : 15,420.30 = 4,432.60 : x
  2. Step 2: Convert to fraction form
    10,276.12/15,420.30 = 4,432.60/x
  3. Step 3: Cross multiply
    10,276.12x = 15,420.30 × 4,432.60
  4. Step 4: Simplify right side
    10,276.12x = 68,352,021.78
  5. Step 5: Solve for x
    x = 68,352,021.78/10,276.12
  6. Step 6: Final answer
    x = 6,651.54

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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.