Home / 17,618.82-26,428.22-5,140.11

Finding the Fourth Proportional to 17,618.82, 26,428.22 and 5,140.11

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Solution

The fourth proportional to 17,618.82, 26,428.22 and 5,140.11 is: 7,710.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,618.82 : 26,428.22 = 5,140.11 : x
  2. Step 2: Convert to fraction form
    17,618.82/26,428.22 = 5,140.11/x
  3. Step 3: Cross multiply
    17,618.82x = 26,428.22 × 5,140.11
  4. Step 4: Simplify right side
    17,618.82x = 135,843,930.84
  5. Step 5: Solve for x
    x = 135,843,930.84/17,618.82
  6. Step 6: Final answer
    x = 7,710.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.