Home / 17,719.86-26,580.15-5,239.88

Finding the Fourth Proportional to 17,719.86, 26,580.15 and 5,239.88

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Solution

The fourth proportional to 17,719.86, 26,580.15 and 5,239.88 is: 7,859.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,719.86 : 26,580.15 = 5,239.88 : x
  2. Step 2: Convert to fraction form
    17,719.86/26,580.15 = 5,239.88/x
  3. Step 3: Cross multiply
    17,719.86x = 26,580.15 × 5,239.88
  4. Step 4: Simplify right side
    17,719.86x = 139,276,663.48
  5. Step 5: Solve for x
    x = 139,276,663.48/17,719.86
  6. Step 6: Final answer
    x = 7,859.92

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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.