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Finding the Fourth Proportional to 17,339.99, 26,010.38 and 7,987.83

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Solution

The fourth proportional to 17,339.99, 26,010.38 and 7,987.83 is: 11,981.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,339.99 : 26,010.38 = 7,987.83 : x
  2. Step 2: Convert to fraction form
    17,339.99/26,010.38 = 7,987.83/x
  3. Step 3: Cross multiply
    17,339.99x = 26,010.38 × 7,987.83
  4. Step 4: Simplify right side
    17,339.99x = 207,766,416.11
  5. Step 5: Solve for x
    x = 207,766,416.11/17,339.99
  6. Step 6: Final answer
    x = 11,981.93

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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.