Home / 18,565.39-27,783.01-13,306.20

Finding the Fourth Proportional to 18,565.39, 27,783.01 and 13,306.20

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Solution

The fourth proportional to 18,565.39, 27,783.01 and 13,306.20 is: 19,912.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,565.39 : 27,783.01 = 13,306.20 : x
  2. Step 2: Convert to fraction form
    18,565.39/27,783.01 = 13,306.20/x
  3. Step 3: Cross multiply
    18,565.39x = 27,783.01 × 13,306.20
  4. Step 4: Simplify right side
    18,565.39x = 369,686,287.66
  5. Step 5: Solve for x
    x = 369,686,287.66/18,565.39
  6. Step 6: Final answer
    x = 19,912.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.