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Finding the Fourth Proportional to 8,154.88, 11,254.08 and 5,363.20

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Solution

The fourth proportional to 8,154.88, 11,254.08 and 5,363.20 is: 7,401.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,154.88 : 11,254.08 = 5,363.20 : x
  2. Step 2: Convert to fraction form
    8,154.88/11,254.08 = 5,363.20/x
  3. Step 3: Cross multiply
    8,154.88x = 11,254.08 × 5,363.20
  4. Step 4: Simplify right side
    8,154.88x = 60,357,881.86
  5. Step 5: Solve for x
    x = 60,357,881.86/8,154.88
  6. Step 6: Final answer
    x = 7,401.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.