Home / 12,058.28-16,640.43-6,681.07

Finding the Fourth Proportional to 12,058.28, 16,640.43 and 6,681.07

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Solution

The fourth proportional to 12,058.28, 16,640.43 and 6,681.07 is: 9,219.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,058.28 : 16,640.43 = 6,681.07 : x
  2. Step 2: Convert to fraction form
    12,058.28/16,640.43 = 6,681.07/x
  3. Step 3: Cross multiply
    12,058.28x = 16,640.43 × 6,681.07
  4. Step 4: Simplify right side
    12,058.28x = 111,175,836.06
  5. Step 5: Solve for x
    x = 111,175,836.06/12,058.28
  6. Step 6: Final answer
    x = 9,219.87

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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.