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Finding the Fourth Proportional to 8,254.12, 11,386 and 4,894.80

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Solution

The fourth proportional to 8,254.12, 11,386 and 4,894.80 is: 6,752.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,254.12 : 11,386 = 4,894.80 : x
  2. Step 2: Convert to fraction form
    8,254.12/11,386 = 4,894.80/x
  3. Step 3: Cross multiply
    8,254.12x = 11,386 × 4,894.80
  4. Step 4: Simplify right side
    8,254.12x = 55,732,192.80
  5. Step 5: Solve for x
    x = 55,732,192.80/8,254.12
  6. Step 6: Final answer
    x = 6,752.05

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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.