Home / 12,561.33-17,334.63-6,972.33

Finding the Fourth Proportional to 12,561.33, 17,334.63 and 6,972.33

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Solution

The fourth proportional to 12,561.33, 17,334.63 and 6,972.33 is: 9,621.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.33 : 17,334.63 = 6,972.33 : x
  2. Step 2: Convert to fraction form
    12,561.33/17,334.63 = 6,972.33/x
  3. Step 3: Cross multiply
    12,561.33x = 17,334.63 × 6,972.33
  4. Step 4: Simplify right side
    12,561.33x = 120,862,747.90
  5. Step 5: Solve for x
    x = 120,862,747.90/12,561.33
  6. Step 6: Final answer
    x = 9,621.81

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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.