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Finding the Fourth Proportional to 36,274.64, 54,410.54 and 9,978.66

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Solution

The fourth proportional to 36,274.64, 54,410.54 and 9,978.66 is: 14,967.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,274.64 : 54,410.54 = 9,978.66 : x
  2. Step 2: Convert to fraction form
    36,274.64/54,410.54 = 9,978.66/x
  3. Step 3: Cross multiply
    36,274.64x = 54,410.54 × 9,978.66
  4. Step 4: Simplify right side
    36,274.64x = 542,944,229.18
  5. Step 5: Solve for x
    x = 542,944,229.18/36,274.64
  6. Step 6: Final answer
    x = 14,967.60

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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.