Home / 14,814.06-20,443.41-8,440.47

Finding the Fourth Proportional to 14,814.06, 20,443.41 and 8,440.47

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Solution

The fourth proportional to 14,814.06, 20,443.41 and 8,440.47 is: 11,647.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,814.06 : 20,443.41 = 8,440.47 : x
  2. Step 2: Convert to fraction form
    14,814.06/20,443.41 = 8,440.47/x
  3. Step 3: Cross multiply
    14,814.06x = 20,443.41 × 8,440.47
  4. Step 4: Simplify right side
    14,814.06x = 172,551,988.80
  5. Step 5: Solve for x
    x = 172,551,988.80/14,814.06
  6. Step 6: Final answer
    x = 11,647.85

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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.