Home / 19,126.76-28,689.35-6,649.61

Finding the Fourth Proportional to 19,126.76, 28,689.35 and 6,649.61

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Solution

The fourth proportional to 19,126.76, 28,689.35 and 6,649.61 is: 9,974.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,126.76 : 28,689.35 = 6,649.61 : x
  2. Step 2: Convert to fraction form
    19,126.76/28,689.35 = 6,649.61/x
  3. Step 3: Cross multiply
    19,126.76x = 28,689.35 × 6,649.61
  4. Step 4: Simplify right side
    19,126.76x = 190,772,811.96
  5. Step 5: Solve for x
    x = 190,772,811.96/19,126.76
  6. Step 6: Final answer
    x = 9,974.13

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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.