Home / 12,459.73-17,194.80-7,155.58

Finding the Fourth Proportional to 12,459.73, 17,194.80 and 7,155.58

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Solution

The fourth proportional to 12,459.73, 17,194.80 and 7,155.58 is: 9,874.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.73 : 17,194.80 = 7,155.58 : x
  2. Step 2: Convert to fraction form
    12,459.73/17,194.80 = 7,155.58/x
  3. Step 3: Cross multiply
    12,459.73x = 17,194.80 × 7,155.58
  4. Step 4: Simplify right side
    12,459.73x = 123,038,766.98
  5. Step 5: Solve for x
    x = 123,038,766.98/12,459.73
  6. Step 6: Final answer
    x = 9,874.91

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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.