Home / 8,772.30-12,110.04-6,879.60

Finding the Fourth Proportional to 8,772.30, 12,110.04 and 6,879.60

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Solution

The fourth proportional to 8,772.30, 12,110.04 and 6,879.60 is: 9,497.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.30 : 12,110.04 = 6,879.60 : x
  2. Step 2: Convert to fraction form
    8,772.30/12,110.04 = 6,879.60/x
  3. Step 3: Cross multiply
    8,772.30x = 12,110.04 × 6,879.60
  4. Step 4: Simplify right side
    8,772.30x = 83,312,231.18
  5. Step 5: Solve for x
    x = 83,312,231.18/8,772.30
  6. Step 6: Final answer
    x = 9,497.19

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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.