Home / 14,963.68-20,648.64-8,248.78

Finding the Fourth Proportional to 14,963.68, 20,648.64 and 8,248.78

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Solution

The fourth proportional to 14,963.68, 20,648.64 and 8,248.78 is: 11,382.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,963.68 : 20,648.64 = 8,248.78 : x
  2. Step 2: Convert to fraction form
    14,963.68/20,648.64 = 8,248.78/x
  3. Step 3: Cross multiply
    14,963.68x = 20,648.64 × 8,248.78
  4. Step 4: Simplify right side
    14,963.68x = 170,326,088.66
  5. Step 5: Solve for x
    x = 170,326,088.66/14,963.68
  6. Step 6: Final answer
    x = 11,382.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.