Home / 19,918.67-27,487.55-10,965.99

Finding the Fourth Proportional to 19,918.67, 27,487.55 and 10,965.99

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Solution

The fourth proportional to 19,918.67, 27,487.55 and 10,965.99 is: 15,132.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.67 : 27,487.55 = 10,965.99 : x
  2. Step 2: Convert to fraction form
    19,918.67/27,487.55 = 10,965.99/x
  3. Step 3: Cross multiply
    19,918.67x = 27,487.55 × 10,965.99
  4. Step 4: Simplify right side
    19,918.67x = 301,428,143.59
  5. Step 5: Solve for x
    x = 301,428,143.59/19,918.67
  6. Step 6: Final answer
    x = 15,132.95

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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.