Home / 11,027.28-15,221.64-7,302.48

Finding the Fourth Proportional to 11,027.28, 15,221.64 and 7,302.48

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Solution

The fourth proportional to 11,027.28, 15,221.64 and 7,302.48 is: 10,080.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,027.28 : 15,221.64 = 7,302.48 : x
  2. Step 2: Convert to fraction form
    11,027.28/15,221.64 = 7,302.48/x
  3. Step 3: Cross multiply
    11,027.28x = 15,221.64 × 7,302.48
  4. Step 4: Simplify right side
    11,027.28x = 111,155,721.67
  5. Step 5: Solve for x
    x = 111,155,721.67/11,027.28
  6. Step 6: Final answer
    x = 10,080.07

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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.