Home / 12,609.12-18,913.60-7,062.49

Finding the Fourth Proportional to 12,609.12, 18,913.60 and 7,062.49

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Solution

The fourth proportional to 12,609.12, 18,913.60 and 7,062.49 is: 10,593.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.12 : 18,913.60 = 7,062.49 : x
  2. Step 2: Convert to fraction form
    12,609.12/18,913.60 = 7,062.49/x
  3. Step 3: Cross multiply
    12,609.12x = 18,913.60 × 7,062.49
  4. Step 4: Simplify right side
    12,609.12x = 133,577,143.33
  5. Step 5: Solve for x
    x = 133,577,143.33/12,609.12
  6. Step 6: Final answer
    x = 10,593.69

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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.