Home / 8,207.68-12,307.20-5,611.36

Finding the Fourth Proportional to 8,207.68, 12,307.20 and 5,611.36

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Solution

The fourth proportional to 8,207.68, 12,307.20 and 5,611.36 is: 8,414.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.68 : 12,307.20 = 5,611.36 : x
  2. Step 2: Convert to fraction form
    8,207.68/12,307.20 = 5,611.36/x
  3. Step 3: Cross multiply
    8,207.68x = 12,307.20 × 5,611.36
  4. Step 4: Simplify right side
    8,207.68x = 69,060,129.79
  5. Step 5: Solve for x
    x = 69,060,129.79/8,207.68
  6. Step 6: Final answer
    x = 8,414.09

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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.