Home / 18,863.81-28,292.58-5,713.06

Finding the Fourth Proportional to 18,863.81, 28,292.58 and 5,713.06

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Solution

The fourth proportional to 18,863.81, 28,292.58 and 5,713.06 is: 8,568.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863.81 : 28,292.58 = 5,713.06 : x
  2. Step 2: Convert to fraction form
    18,863.81/28,292.58 = 5,713.06/x
  3. Step 3: Cross multiply
    18,863.81x = 28,292.58 × 5,713.06
  4. Step 4: Simplify right side
    18,863.81x = 161,637,122.08
  5. Step 5: Solve for x
    x = 161,637,122.08/18,863.81
  6. Step 6: Final answer
    x = 8,568.63

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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.