Home / 15,176.39-20,942.73-8,462.13

Finding the Fourth Proportional to 15,176.39, 20,942.73 and 8,462.13

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Solution

The fourth proportional to 15,176.39, 20,942.73 and 8,462.13 is: 11,677.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,176.39 : 20,942.73 = 8,462.13 : x
  2. Step 2: Convert to fraction form
    15,176.39/20,942.73 = 8,462.13/x
  3. Step 3: Cross multiply
    15,176.39x = 20,942.73 × 8,462.13
  4. Step 4: Simplify right side
    15,176.39x = 177,220,103.81
  5. Step 5: Solve for x
    x = 177,220,103.81/15,176.39
  6. Step 6: Final answer
    x = 11,677.36

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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.