Home / 15,015.85-22,520.28-5,656.80

Finding the Fourth Proportional to 15,015.85, 22,520.28 and 5,656.80

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Solution

The fourth proportional to 15,015.85, 22,520.28 and 5,656.80 is: 8,483.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,015.85 : 22,520.28 = 5,656.80 : x
  2. Step 2: Convert to fraction form
    15,015.85/22,520.28 = 5,656.80/x
  3. Step 3: Cross multiply
    15,015.85x = 22,520.28 × 5,656.80
  4. Step 4: Simplify right side
    15,015.85x = 127,392,793.75
  5. Step 5: Solve for x
    x = 127,392,793.75/15,015.85
  6. Step 6: Final answer
    x = 8,483.89

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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.