Home / 12,424.96-17,146.43-7,122.85

Finding the Fourth Proportional to 12,424.96, 17,146.43 and 7,122.85

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Solution

The fourth proportional to 12,424.96, 17,146.43 and 7,122.85 is: 9,829.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424.96 : 17,146.43 = 7,122.85 : x
  2. Step 2: Convert to fraction form
    12,424.96/17,146.43 = 7,122.85/x
  3. Step 3: Cross multiply
    12,424.96x = 17,146.43 × 7,122.85
  4. Step 4: Simplify right side
    12,424.96x = 122,131,363.19
  5. Step 5: Solve for x
    x = 122,131,363.19/12,424.96
  6. Step 6: Final answer
    x = 9,829.52

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Double scale
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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.