Home / 12,149.50-16,767.51-7,113.42

Finding the Fourth Proportional to 12,149.50, 16,767.51 and 7,113.42

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Solution

The fourth proportional to 12,149.50, 16,767.51 and 7,113.42 is: 9,817.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.50 : 16,767.51 = 7,113.42 : x
  2. Step 2: Convert to fraction form
    12,149.50/16,767.51 = 7,113.42/x
  3. Step 3: Cross multiply
    12,149.50x = 16,767.51 × 7,113.42
  4. Step 4: Simplify right side
    12,149.50x = 119,274,340.98
  5. Step 5: Solve for x
    x = 119,274,340.98/12,149.50
  6. Step 6: Final answer
    x = 9,817.22

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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.