Home / 14,949.91-20,637.71-10,645.78

Finding the Fourth Proportional to 14,949.91, 20,637.71 and 10,645.78

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Solution

The fourth proportional to 14,949.91, 20,637.71 and 10,645.78 is: 14,696.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,949.91 : 20,637.71 = 10,645.78 : x
  2. Step 2: Convert to fraction form
    14,949.91/20,637.71 = 10,645.78/x
  3. Step 3: Cross multiply
    14,949.91x = 20,637.71 × 10,645.78
  4. Step 4: Simplify right side
    14,949.91x = 219,704,520.36
  5. Step 5: Solve for x
    x = 219,704,520.36/14,949.91
  6. Step 6: Final answer
    x = 14,696.04

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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.