Home / 12,601.26-17,389.49-7,888.14

Finding the Fourth Proportional to 12,601.26, 17,389.49 and 7,888.14

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Solution

The fourth proportional to 12,601.26, 17,389.49 and 7,888.14 is: 10,885.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,601.26 : 17,389.49 = 7,888.14 : x
  2. Step 2: Convert to fraction form
    12,601.26/17,389.49 = 7,888.14/x
  3. Step 3: Cross multiply
    12,601.26x = 17,389.49 × 7,888.14
  4. Step 4: Simplify right side
    12,601.26x = 137,170,692.21
  5. Step 5: Solve for x
    x = 137,170,692.21/12,601.26
  6. Step 6: Final answer
    x = 10,885.47

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Double scale
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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.