Home / 11,390.13-17,061.28-7,228

Finding the Fourth Proportional to 11,390.13, 17,061.28 and 7,228

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Solution

The fourth proportional to 11,390.13, 17,061.28 and 7,228 is: 10,826.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.13 : 17,061.28 = 7,228 : x
  2. Step 2: Convert to fraction form
    11,390.13/17,061.28 = 7,228/x
  3. Step 3: Cross multiply
    11,390.13x = 17,061.28 × 7,228
  4. Step 4: Simplify right side
    11,390.13x = 123,318,931.84
  5. Step 5: Solve for x
    x = 123,318,931.84/11,390.13
  6. Step 6: Final answer
    x = 10,826.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.