Home / 19,918.89-27,488.25-10,966.14

Finding the Fourth Proportional to 19,918.89, 27,488.25 and 10,966.14

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Solution

The fourth proportional to 19,918.89, 27,488.25 and 10,966.14 is: 15,133.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.89 : 27,488.25 = 10,966.14 : x
  2. Step 2: Convert to fraction form
    19,918.89/27,488.25 = 10,966.14/x
  3. Step 3: Cross multiply
    19,918.89x = 27,488.25 × 10,966.14
  4. Step 4: Simplify right side
    19,918.89x = 301,439,997.86
  5. Step 5: Solve for x
    x = 301,439,997.86/19,918.89
  6. Step 6: Final answer
    x = 15,133.37

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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.