Home / 19,918.68-27,487.29-10,966.11

Finding the Fourth Proportional to 19,918.68, 27,487.29 and 10,966.11

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Solution

The fourth proportional to 19,918.68, 27,487.29 and 10,966.11 is: 15,132.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.68 : 27,487.29 = 10,966.11 : x
  2. Step 2: Convert to fraction form
    19,918.68/27,487.29 = 10,966.11/x
  3. Step 3: Cross multiply
    19,918.68x = 27,487.29 × 10,966.11
  4. Step 4: Simplify right side
    19,918.68x = 301,428,645.74
  5. Step 5: Solve for x
    x = 301,428,645.74/19,918.68
  6. Step 6: Final answer
    x = 15,132.96

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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.