Home / 19,663.82-27,135.47-10,711.18

Finding the Fourth Proportional to 19,663.82, 27,135.47 and 10,711.18

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Solution

The fourth proportional to 19,663.82, 27,135.47 and 10,711.18 is: 14,781.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,663.82 : 27,135.47 = 10,711.18 : x
  2. Step 2: Convert to fraction form
    19,663.82/27,135.47 = 10,711.18/x
  3. Step 3: Cross multiply
    19,663.82x = 27,135.47 × 10,711.18
  4. Step 4: Simplify right side
    19,663.82x = 290,652,903.55
  5. Step 5: Solve for x
    x = 290,652,903.55/19,663.82
  6. Step 6: Final answer
    x = 14,781.10

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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.