Home / 19,770.17-27,282.17-11,807.66

Finding the Fourth Proportional to 19,770.17, 27,282.17 and 11,807.66

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Solution

The fourth proportional to 19,770.17, 27,282.17 and 11,807.66 is: 16,294.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,770.17 : 27,282.17 = 11,807.66 : x
  2. Step 2: Convert to fraction form
    19,770.17/27,282.17 = 11,807.66/x
  3. Step 3: Cross multiply
    19,770.17x = 27,282.17 × 11,807.66
  4. Step 4: Simplify right side
    19,770.17x = 322,138,391.97
  5. Step 5: Solve for x
    x = 322,138,391.97/19,770.17
  6. Step 6: Final answer
    x = 16,294.17

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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.