Home / 17,886.72-26,830.28-5,406.85

Finding the Fourth Proportional to 17,886.72, 26,830.28 and 5,406.85

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Solution

The fourth proportional to 17,886.72, 26,830.28 and 5,406.85 is: 8,110.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,886.72 : 26,830.28 = 5,406.85 : x
  2. Step 2: Convert to fraction form
    17,886.72/26,830.28 = 5,406.85/x
  3. Step 3: Cross multiply
    17,886.72x = 26,830.28 × 5,406.85
  4. Step 4: Simplify right side
    17,886.72x = 145,067,299.42
  5. Step 5: Solve for x
    x = 145,067,299.42/17,886.72
  6. Step 6: Final answer
    x = 8,110.34

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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.