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Finding the Fourth Proportional to 14,805.78, 22,211.77 and 4,275.78

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Solution

The fourth proportional to 14,805.78, 22,211.77 and 4,275.78 is: 6,414.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,805.78 : 22,211.77 = 4,275.78 : x
  2. Step 2: Convert to fraction form
    14,805.78/22,211.77 = 4,275.78/x
  3. Step 3: Cross multiply
    14,805.78x = 22,211.77 × 4,275.78
  4. Step 4: Simplify right side
    14,805.78x = 94,972,641.93
  5. Step 5: Solve for x
    x = 94,972,641.93/14,805.78
  6. Step 6: Final answer
    x = 6,414.57

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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.