Home / 11,838.86-17,758.28-3,518.84

Finding the Fourth Proportional to 11,838.86, 17,758.28 and 3,518.84

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Solution

The fourth proportional to 11,838.86, 17,758.28 and 3,518.84 is: 5,278.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,838.86 : 17,758.28 = 3,518.84 : x
  2. Step 2: Convert to fraction form
    11,838.86/17,758.28 = 3,518.84/x
  3. Step 3: Cross multiply
    11,838.86x = 17,758.28 × 3,518.84
  4. Step 4: Simplify right side
    11,838.86x = 62,488,457.20
  5. Step 5: Solve for x
    x = 62,488,457.20/11,838.86
  6. Step 6: Final answer
    x = 5,278.25

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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.