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Finding the Fourth Proportional to 26,401.20, 39,600.36 and 8,869.20

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Solution

The fourth proportional to 26,401.20, 39,600.36 and 8,869.20 is: 13,303.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,401.20 : 39,600.36 = 8,869.20 : x
  2. Step 2: Convert to fraction form
    26,401.20/39,600.36 = 8,869.20/x
  3. Step 3: Cross multiply
    26,401.20x = 39,600.36 × 8,869.20
  4. Step 4: Simplify right side
    26,401.20x = 351,223,512.91
  5. Step 5: Solve for x
    x = 351,223,512.91/26,401.20
  6. Step 6: Final answer
    x = 13,303.32

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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.