Home / 14,443.40-21,672.30-8,208.20

Finding the Fourth Proportional to 14,443.40, 21,672.30 and 8,208.20

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Solution

The fourth proportional to 14,443.40, 21,672.30 and 8,208.20 is: 12,316.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,443.40 : 21,672.30 = 8,208.20 : x
  2. Step 2: Convert to fraction form
    14,443.40/21,672.30 = 8,208.20/x
  3. Step 3: Cross multiply
    14,443.40x = 21,672.30 × 8,208.20
  4. Step 4: Simplify right side
    14,443.40x = 177,890,572.86
  5. Step 5: Solve for x
    x = 177,890,572.86/14,443.40
  6. Step 6: Final answer
    x = 12,316.39

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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.