Home / 19,918.49-27,487.70-10,966.19

Finding the Fourth Proportional to 19,918.49, 27,487.70 and 10,966.19

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Solution

The fourth proportional to 19,918.49, 27,487.70 and 10,966.19 is: 15,133.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.49 : 27,487.70 = 10,966.19 : x
  2. Step 2: Convert to fraction form
    19,918.49/27,487.70 = 10,966.19/x
  3. Step 3: Cross multiply
    19,918.49x = 27,487.70 × 10,966.19
  4. Step 4: Simplify right side
    19,918.49x = 301,435,217.31
  5. Step 5: Solve for x
    x = 301,435,217.31/19,918.49
  6. Step 6: Final answer
    x = 15,133.44

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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.