Home / 12,768.33-17,620.15-7,103.04

Finding the Fourth Proportional to 12,768.33, 17,620.15 and 7,103.04

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Solution

The fourth proportional to 12,768.33, 17,620.15 and 7,103.04 is: 9,802.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768.33 : 17,620.15 = 7,103.04 : x
  2. Step 2: Convert to fraction form
    12,768.33/17,620.15 = 7,103.04/x
  3. Step 3: Cross multiply
    12,768.33x = 17,620.15 × 7,103.04
  4. Step 4: Simplify right side
    12,768.33x = 125,156,630.26
  5. Step 5: Solve for x
    x = 125,156,630.26/12,768.33
  6. Step 6: Final answer
    x = 9,802.11

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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.