Home / 12,459.75-17,194.47-7,154.91

Finding the Fourth Proportional to 12,459.75, 17,194.47 and 7,154.91

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Solution

The fourth proportional to 12,459.75, 17,194.47 and 7,154.91 is: 9,873.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.75 : 17,194.47 = 7,154.91 : x
  2. Step 2: Convert to fraction form
    12,459.75/17,194.47 = 7,154.91/x
  3. Step 3: Cross multiply
    12,459.75x = 17,194.47 × 7,154.91
  4. Step 4: Simplify right side
    12,459.75x = 123,024,885.35
  5. Step 5: Solve for x
    x = 123,024,885.35/12,459.75
  6. Step 6: Final answer
    x = 9,873.78

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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.