Home / 18,859.68-28,290.90-5,713.08

Finding the Fourth Proportional to 18,859.68, 28,290.90 and 5,713.08

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Solution

The fourth proportional to 18,859.68, 28,290.90 and 5,713.08 is: 8,570.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,859.68 : 28,290.90 = 5,713.08 : x
  2. Step 2: Convert to fraction form
    18,859.68/28,290.90 = 5,713.08/x
  3. Step 3: Cross multiply
    18,859.68x = 28,290.90 × 5,713.08
  4. Step 4: Simplify right side
    18,859.68x = 161,628,174.97
  5. Step 5: Solve for x
    x = 161,628,174.97/18,859.68
  6. Step 6: Final answer
    x = 8,570.04

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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.