Home / 8,822.18-12,172.32-5,282.88

Finding the Fourth Proportional to 8,822.18, 12,172.32 and 5,282.88

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Solution

The fourth proportional to 8,822.18, 12,172.32 and 5,282.88 is: 7,289.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,822.18 : 12,172.32 = 5,282.88 : x
  2. Step 2: Convert to fraction form
    8,822.18/12,172.32 = 5,282.88/x
  3. Step 3: Cross multiply
    8,822.18x = 12,172.32 × 5,282.88
  4. Step 4: Simplify right side
    8,822.18x = 64,304,905.88
  5. Step 5: Solve for x
    x = 64,304,905.88/8,822.18
  6. Step 6: Final answer
    x = 7,289.01

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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.