Home / 8,768.08-13,147.80-7,307.92

Finding the Fourth Proportional to 8,768.08, 13,147.80 and 7,307.92

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Solution

The fourth proportional to 8,768.08, 13,147.80 and 7,307.92 is: 10,958.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.08 : 13,147.80 = 7,307.92 : x
  2. Step 2: Convert to fraction form
    8,768.08/13,147.80 = 7,307.92/x
  3. Step 3: Cross multiply
    8,768.08x = 13,147.80 × 7,307.92
  4. Step 4: Simplify right side
    8,768.08x = 96,083,070.58
  5. Step 5: Solve for x
    x = 96,083,070.58/8,768.08
  6. Step 6: Final answer
    x = 10,958.28

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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.