Home / 19,918.63-27,487.85-10,966.17

Finding the Fourth Proportional to 19,918.63, 27,487.85 and 10,966.17

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Solution

The fourth proportional to 19,918.63, 27,487.85 and 10,966.17 is: 15,133.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.63 : 27,487.85 = 10,966.17 : x
  2. Step 2: Convert to fraction form
    19,918.63/27,487.85 = 10,966.17/x
  3. Step 3: Cross multiply
    19,918.63x = 27,487.85 × 10,966.17
  4. Step 4: Simplify right side
    19,918.63x = 301,436,436.03
  5. Step 5: Solve for x
    x = 301,436,436.03/19,918.63
  6. Step 6: Final answer
    x = 15,133.39

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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.