Home / 8,818.97-12,171.21-5,282.10

Finding the Fourth Proportional to 8,818.97, 12,171.21 and 5,282.10

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Solution

The fourth proportional to 8,818.97, 12,171.21 and 5,282.10 is: 7,289.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.97 : 12,171.21 = 5,282.10 : x
  2. Step 2: Convert to fraction form
    8,818.97/12,171.21 = 5,282.10/x
  3. Step 3: Cross multiply
    8,818.97x = 12,171.21 × 5,282.10
  4. Step 4: Simplify right side
    8,818.97x = 64,289,548.34
  5. Step 5: Solve for x
    x = 64,289,548.34/8,818.97
  6. Step 6: Final answer
    x = 7,289.92

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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.