Home / 9,110.40-13,633.20-8,332.80

Finding the Fourth Proportional to 9,110.40, 13,633.20 and 8,332.80

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Solution

The fourth proportional to 9,110.40, 13,633.20 and 8,332.80 is: 12,469.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,110.40 : 13,633.20 = 8,332.80 : x
  2. Step 2: Convert to fraction form
    9,110.40/13,633.20 = 8,332.80/x
  3. Step 3: Cross multiply
    9,110.40x = 13,633.20 × 8,332.80
  4. Step 4: Simplify right side
    9,110.40x = 113,602,728.96
  5. Step 5: Solve for x
    x = 113,602,728.96/9,110.40
  6. Step 6: Final answer
    x = 12,469.57

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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.