Home / 19,918.28-27,487.67-10,965.95

Finding the Fourth Proportional to 19,918.28, 27,487.67 and 10,965.95

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Solution

The fourth proportional to 19,918.28, 27,487.67 and 10,965.95 is: 15,133.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.28 : 27,487.67 = 10,965.95 : x
  2. Step 2: Convert to fraction form
    19,918.28/27,487.67 = 10,965.95/x
  3. Step 3: Cross multiply
    19,918.28x = 27,487.67 × 10,965.95
  4. Step 4: Simplify right side
    19,918.28x = 301,428,428.73
  5. Step 5: Solve for x
    x = 301,428,428.73/19,918.28
  6. Step 6: Final answer
    x = 15,133.26

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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.