Home / 8,817.18-13,227.40-7,188.18

Finding the Fourth Proportional to 8,817.18, 13,227.40 and 7,188.18

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Solution

The fourth proportional to 8,817.18, 13,227.40 and 7,188.18 is: 10,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,817.18 : 13,227.40 = 7,188.18 : x
  2. Step 2: Convert to fraction form
    8,817.18/13,227.40 = 7,188.18/x
  3. Step 3: Cross multiply
    8,817.18x = 13,227.40 × 7,188.18
  4. Step 4: Simplify right side
    8,817.18x = 95,080,932.13
  5. Step 5: Solve for x
    x = 95,080,932.13/8,817.18
  6. Step 6: Final answer
    x = 10,783.60

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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.