Home / 11,214.04-15,470.16-7,236.42

Finding the Fourth Proportional to 11,214.04, 15,470.16 and 7,236.42

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Solution

The fourth proportional to 11,214.04, 15,470.16 and 7,236.42 is: 9,982.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,214.04 : 15,470.16 = 7,236.42 : x
  2. Step 2: Convert to fraction form
    11,214.04/15,470.16 = 7,236.42/x
  3. Step 3: Cross multiply
    11,214.04x = 15,470.16 × 7,236.42
  4. Step 4: Simplify right side
    11,214.04x = 111,948,575.23
  5. Step 5: Solve for x
    x = 111,948,575.23/11,214.04
  6. Step 6: Final answer
    x = 9,982.89

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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.