Home / 11,231.72-15,501.20-9,340.04

Finding the Fourth Proportional to 11,231.72, 15,501.20 and 9,340.04

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Solution

The fourth proportional to 11,231.72, 15,501.20 and 9,340.04 is: 12,890.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,231.72 : 15,501.20 = 9,340.04 : x
  2. Step 2: Convert to fraction form
    11,231.72/15,501.20 = 9,340.04/x
  3. Step 3: Cross multiply
    11,231.72x = 15,501.20 × 9,340.04
  4. Step 4: Simplify right side
    11,231.72x = 144,781,703.84
  5. Step 5: Solve for x
    x = 144,781,703.84/11,231.72
  6. Step 6: Final answer
    x = 12,890.44

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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.