Home / 8,377.85-12,547.63-3,998.38

Finding the Fourth Proportional to 8,377.85, 12,547.63 and 3,998.38

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Solution

The fourth proportional to 8,377.85, 12,547.63 and 3,998.38 is: 5,988.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,377.85 : 12,547.63 = 3,998.38 : x
  2. Step 2: Convert to fraction form
    8,377.85/12,547.63 = 3,998.38/x
  3. Step 3: Cross multiply
    8,377.85x = 12,547.63 × 3,998.38
  4. Step 4: Simplify right side
    8,377.85x = 50,170,172.85
  5. Step 5: Solve for x
    x = 50,170,172.85/8,377.85
  6. Step 6: Final answer
    x = 5,988.43

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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.