Home / 12,172.47-16,793.51-8,993.43

Finding the Fourth Proportional to 12,172.47, 16,793.51 and 8,993.43

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Solution

The fourth proportional to 12,172.47, 16,793.51 and 8,993.43 is: 12,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.47 : 16,793.51 = 8,993.43 : x
  2. Step 2: Convert to fraction form
    12,172.47/16,793.51 = 8,993.43/x
  3. Step 3: Cross multiply
    12,172.47x = 16,793.51 × 8,993.43
  4. Step 4: Simplify right side
    12,172.47x = 151,031,172.67
  5. Step 5: Solve for x
    x = 151,031,172.67/12,172.47
  6. Step 6: Final answer
    x = 12,407.60

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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.