Home / 15,389.38-23,067.36-7,882.64

Finding the Fourth Proportional to 15,389.38, 23,067.36 and 7,882.64

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Solution

The fourth proportional to 15,389.38, 23,067.36 and 7,882.64 is: 11,815.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,389.38 : 23,067.36 = 7,882.64 : x
  2. Step 2: Convert to fraction form
    15,389.38/23,067.36 = 7,882.64/x
  3. Step 3: Cross multiply
    15,389.38x = 23,067.36 × 7,882.64
  4. Step 4: Simplify right side
    15,389.38x = 181,831,694.63
  5. Step 5: Solve for x
    x = 181,831,694.63/15,389.38
  6. Step 6: Final answer
    x = 11,815.40

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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.