Home / 12,532.42-18,786.33-6,988.38

Finding the Fourth Proportional to 12,532.42, 18,786.33 and 6,988.38

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Solution

The fourth proportional to 12,532.42, 18,786.33 and 6,988.38 is: 10,475.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,532.42 : 18,786.33 = 6,988.38 : x
  2. Step 2: Convert to fraction form
    12,532.42/18,786.33 = 6,988.38/x
  3. Step 3: Cross multiply
    12,532.42x = 18,786.33 × 6,988.38
  4. Step 4: Simplify right side
    12,532.42x = 131,285,942.40
  5. Step 5: Solve for x
    x = 131,285,942.40/12,532.42
  6. Step 6: Final answer
    x = 10,475.70

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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.