Home / 19,918.78-27,488.36-10,966.46

Finding the Fourth Proportional to 19,918.78, 27,488.36 and 10,966.46

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Solution

The fourth proportional to 19,918.78, 27,488.36 and 10,966.46 is: 15,133.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.78 : 27,488.36 = 10,966.46 : x
  2. Step 2: Convert to fraction form
    19,918.78/27,488.36 = 10,966.46/x
  3. Step 3: Cross multiply
    19,918.78x = 27,488.36 × 10,966.46
  4. Step 4: Simplify right side
    19,918.78x = 301,449,808.13
  5. Step 5: Solve for x
    x = 301,449,808.13/19,918.78
  6. Step 6: Final answer
    x = 15,133.95

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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.