Home / 18,434.81-27,637.63-13,169.81

Finding the Fourth Proportional to 18,434.81, 27,637.63 and 13,169.81

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Solution

The fourth proportional to 18,434.81, 27,637.63 and 13,169.81 is: 19,744.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,434.81 : 27,637.63 = 13,169.81 : x
  2. Step 2: Convert to fraction form
    18,434.81/27,637.63 = 13,169.81/x
  3. Step 3: Cross multiply
    18,434.81x = 27,637.63 × 13,169.81
  4. Step 4: Simplify right side
    18,434.81x = 363,982,335.95
  5. Step 5: Solve for x
    x = 363,982,335.95/18,434.81
  6. Step 6: Final answer
    x = 19,744.30

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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.