Home / 9,088.20-13,632.30-8,281.80

Finding the Fourth Proportional to 9,088.20, 13,632.30 and 8,281.80

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Solution

The fourth proportional to 9,088.20, 13,632.30 and 8,281.80 is: 12,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,088.20 : 13,632.30 = 8,281.80 : x
  2. Step 2: Convert to fraction form
    9,088.20/13,632.30 = 8,281.80/x
  3. Step 3: Cross multiply
    9,088.20x = 13,632.30 × 8,281.80
  4. Step 4: Simplify right side
    9,088.20x = 112,899,982.14
  5. Step 5: Solve for x
    x = 112,899,982.14/9,088.20
  6. Step 6: Final answer
    x = 12,422.70

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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.