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Finding the Fourth Proportional to 10,363.20, 15,550.20 and 4,520.40

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Solution

The fourth proportional to 10,363.20, 15,550.20 and 4,520.40 is: 6,782.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,363.20 : 15,550.20 = 4,520.40 : x
  2. Step 2: Convert to fraction form
    10,363.20/15,550.20 = 4,520.40/x
  3. Step 3: Cross multiply
    10,363.20x = 15,550.20 × 4,520.40
  4. Step 4: Simplify right side
    10,363.20x = 70,293,124.08
  5. Step 5: Solve for x
    x = 70,293,124.08/10,363.20
  6. Step 6: Final answer
    x = 6,782.96

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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.