Home / 14,067.28-21,111.28-6,671.76

Finding the Fourth Proportional to 14,067.28, 21,111.28 and 6,671.76

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Solution

The fourth proportional to 14,067.28, 21,111.28 and 6,671.76 is: 10,012.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,067.28 : 21,111.28 = 6,671.76 : x
  2. Step 2: Convert to fraction form
    14,067.28/21,111.28 = 6,671.76/x
  3. Step 3: Cross multiply
    14,067.28x = 21,111.28 × 6,671.76
  4. Step 4: Simplify right side
    14,067.28x = 140,849,287.90
  5. Step 5: Solve for x
    x = 140,849,287.90/14,067.28
  6. Step 6: Final answer
    x = 10,012.55

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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.