Home / 15,805.12-23,707.17-4,711.90

Finding the Fourth Proportional to 15,805.12, 23,707.17 and 4,711.90

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Solution

The fourth proportional to 15,805.12, 23,707.17 and 4,711.90 is: 7,067.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,805.12 : 23,707.17 = 4,711.90 : x
  2. Step 2: Convert to fraction form
    15,805.12/23,707.17 = 4,711.90/x
  3. Step 3: Cross multiply
    15,805.12x = 23,707.17 × 4,711.90
  4. Step 4: Simplify right side
    15,805.12x = 111,705,814.32
  5. Step 5: Solve for x
    x = 111,705,814.32/15,805.12
  6. Step 6: Final answer
    x = 7,067.70

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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.