Home / 11,387.90-17,084.19-4,814.12

Finding the Fourth Proportional to 11,387.90, 17,084.19 and 4,814.12

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Solution

The fourth proportional to 11,387.90, 17,084.19 and 4,814.12 is: 7,222.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.90 : 17,084.19 = 4,814.12 : x
  2. Step 2: Convert to fraction form
    11,387.90/17,084.19 = 4,814.12/x
  3. Step 3: Cross multiply
    11,387.90x = 17,084.19 × 4,814.12
  4. Step 4: Simplify right side
    11,387.90x = 82,245,340.76
  5. Step 5: Solve for x
    x = 82,245,340.76/11,387.90
  6. Step 6: Final answer
    x = 7,222.17

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1.5x scale

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.