Home / 14,721.36-20,314.89-8,006.99

Finding the Fourth Proportional to 14,721.36, 20,314.89 and 8,006.99

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Solution

The fourth proportional to 14,721.36, 20,314.89 and 8,006.99 is: 11,049.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.36 : 20,314.89 = 8,006.99 : x
  2. Step 2: Convert to fraction form
    14,721.36/20,314.89 = 8,006.99/x
  3. Step 3: Cross multiply
    14,721.36x = 20,314.89 × 8,006.99
  4. Step 4: Simplify right side
    14,721.36x = 162,661,151.09
  5. Step 5: Solve for x
    x = 162,661,151.09/14,721.36
  6. Step 6: Final answer
    x = 11,049.33

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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.