Home / 19,617.11-27,072.14-10,665.21

Finding the Fourth Proportional to 19,617.11, 27,072.14 and 10,665.21

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Solution

The fourth proportional to 19,617.11, 27,072.14 and 10,665.21 is: 14,718.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,617.11 : 27,072.14 = 10,665.21 : x
  2. Step 2: Convert to fraction form
    19,617.11/27,072.14 = 10,665.21/x
  3. Step 3: Cross multiply
    19,617.11x = 27,072.14 × 10,665.21
  4. Step 4: Simplify right side
    19,617.11x = 288,730,058.25
  5. Step 5: Solve for x
    x = 288,730,058.25/19,617.11
  6. Step 6: Final answer
    x = 14,718.28

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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.