Home / 14,006.88-21,010.24-8,079.92

Finding the Fourth Proportional to 14,006.88, 21,010.24 and 8,079.92

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Solution

The fourth proportional to 14,006.88, 21,010.24 and 8,079.92 is: 12,119.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.88 : 21,010.24 = 8,079.92 : x
  2. Step 2: Convert to fraction form
    14,006.88/21,010.24 = 8,079.92/x
  3. Step 3: Cross multiply
    14,006.88x = 21,010.24 × 8,079.92
  4. Step 4: Simplify right side
    14,006.88x = 169,761,017.98
  5. Step 5: Solve for x
    x = 169,761,017.98/14,006.88
  6. Step 6: Final answer
    x = 12,119.84

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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.