Home / 12,561.49-17,334.90-6,896.81

Finding the Fourth Proportional to 12,561.49, 17,334.90 and 6,896.81

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Solution

The fourth proportional to 12,561.49, 17,334.90 and 6,896.81 is: 9,517.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.49 : 17,334.90 = 6,896.81 : x
  2. Step 2: Convert to fraction form
    12,561.49/17,334.90 = 6,896.81/x
  3. Step 3: Cross multiply
    12,561.49x = 17,334.90 × 6,896.81
  4. Step 4: Simplify right side
    12,561.49x = 119,555,574.58
  5. Step 5: Solve for x
    x = 119,555,574.58/12,561.49
  6. Step 6: Final answer
    x = 9,517.63

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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.