Home / 15,188.20-22,772.56-6,420.76

Finding the Fourth Proportional to 15,188.20, 22,772.56 and 6,420.76

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Solution

The fourth proportional to 15,188.20, 22,772.56 and 6,420.76 is: 9,627.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188.20 : 22,772.56 = 6,420.76 : x
  2. Step 2: Convert to fraction form
    15,188.20/22,772.56 = 6,420.76/x
  3. Step 3: Cross multiply
    15,188.20x = 22,772.56 × 6,420.76
  4. Step 4: Simplify right side
    15,188.20x = 146,217,142.35
  5. Step 5: Solve for x
    x = 146,217,142.35/15,188.20
  6. Step 6: Final answer
    x = 9,627.02

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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.