Home / 14,721.32-20,315.02-8,006.80

Finding the Fourth Proportional to 14,721.32, 20,315.02 and 8,006.80

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Solution

The fourth proportional to 14,721.32, 20,315.02 and 8,006.80 is: 11,049.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.32 : 20,315.02 = 8,006.80 : x
  2. Step 2: Convert to fraction form
    14,721.32/20,315.02 = 8,006.80/x
  3. Step 3: Cross multiply
    14,721.32x = 20,315.02 × 8,006.80
  4. Step 4: Simplify right side
    14,721.32x = 162,658,302.14
  5. Step 5: Solve for x
    x = 162,658,302.14/14,721.32
  6. Step 6: Final answer
    x = 11,049.17

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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.