Home / 11,104.52-15,323.96-6,391.40

Finding the Fourth Proportional to 11,104.52, 15,323.96 and 6,391.40

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Solution

The fourth proportional to 11,104.52, 15,323.96 and 6,391.40 is: 8,819.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,104.52 : 15,323.96 = 6,391.40 : x
  2. Step 2: Convert to fraction form
    11,104.52/15,323.96 = 6,391.40/x
  3. Step 3: Cross multiply
    11,104.52x = 15,323.96 × 6,391.40
  4. Step 4: Simplify right side
    11,104.52x = 97,941,557.94
  5. Step 5: Solve for x
    x = 97,941,557.94/11,104.52
  6. Step 6: Final answer
    x = 8,819.97

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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.