Home / 18,870.08-26,067.36-15,118.16

Finding the Fourth Proportional to 18,870.08, 26,067.36 and 15,118.16

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Solution

The fourth proportional to 18,870.08, 26,067.36 and 15,118.16 is: 20,884.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.08 : 26,067.36 = 15,118.16 : x
  2. Step 2: Convert to fraction form
    18,870.08/26,067.36 = 15,118.16/x
  3. Step 3: Cross multiply
    18,870.08x = 26,067.36 × 15,118.16
  4. Step 4: Simplify right side
    18,870.08x = 394,090,519.26
  5. Step 5: Solve for x
    x = 394,090,519.26/18,870.08
  6. Step 6: Final answer
    x = 20,884.41

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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.