Home / 8,088.40-12,103.80-5,611.60

Finding the Fourth Proportional to 8,088.40, 12,103.80 and 5,611.60

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Solution

The fourth proportional to 8,088.40, 12,103.80 and 5,611.60 is: 8,397.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,088.40 : 12,103.80 = 5,611.60 : x
  2. Step 2: Convert to fraction form
    8,088.40/12,103.80 = 5,611.60/x
  3. Step 3: Cross multiply
    8,088.40x = 12,103.80 × 5,611.60
  4. Step 4: Simplify right side
    8,088.40x = 67,921,684.08
  5. Step 5: Solve for x
    x = 67,921,684.08/8,088.40
  6. Step 6: Final answer
    x = 8,397.42

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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.