Home / 14,721.17-20,315.31-8,006.87

Finding the Fourth Proportional to 14,721.17, 20,315.31 and 8,006.87

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Solution

The fourth proportional to 14,721.17, 20,315.31 and 8,006.87 is: 11,049.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.17 : 20,315.31 = 8,006.87 : x
  2. Step 2: Convert to fraction form
    14,721.17/20,315.31 = 8,006.87/x
  3. Step 3: Cross multiply
    14,721.17x = 20,315.31 × 8,006.87
  4. Step 4: Simplify right side
    14,721.17x = 162,662,046.18
  5. Step 5: Solve for x
    x = 162,662,046.18/14,721.17
  6. Step 6: Final answer
    x = 11,049.53

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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.