Home / 8,289.92-11,448.60-7,104.08

Finding the Fourth Proportional to 8,289.92, 11,448.60 and 7,104.08

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Solution

The fourth proportional to 8,289.92, 11,448.60 and 7,104.08 is: 9,810.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.92 : 11,448.60 = 7,104.08 : x
  2. Step 2: Convert to fraction form
    8,289.92/11,448.60 = 7,104.08/x
  3. Step 3: Cross multiply
    8,289.92x = 11,448.60 × 7,104.08
  4. Step 4: Simplify right side
    8,289.92x = 81,331,770.29
  5. Step 5: Solve for x
    x = 81,331,770.29/8,289.92
  6. Step 6: Final answer
    x = 9,810.92

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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.