Home / 14,715.80-22,073.70-8,138.60

Finding the Fourth Proportional to 14,715.80, 22,073.70 and 8,138.60

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Solution

The fourth proportional to 14,715.80, 22,073.70 and 8,138.60 is: 12,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,715.80 : 22,073.70 = 8,138.60 : x
  2. Step 2: Convert to fraction form
    14,715.80/22,073.70 = 8,138.60/x
  3. Step 3: Cross multiply
    14,715.80x = 22,073.70 × 8,138.60
  4. Step 4: Simplify right side
    14,715.80x = 179,649,014.82
  5. Step 5: Solve for x
    x = 179,649,014.82/14,715.80
  6. Step 6: Final answer
    x = 12,207.90

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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.