Home / 8,405.88-11,605.26-5,575.72

Finding the Fourth Proportional to 8,405.88, 11,605.26 and 5,575.72

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Solution

The fourth proportional to 8,405.88, 11,605.26 and 5,575.72 is: 7,697.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,405.88 : 11,605.26 = 5,575.72 : x
  2. Step 2: Convert to fraction form
    8,405.88/11,605.26 = 5,575.72/x
  3. Step 3: Cross multiply
    8,405.88x = 11,605.26 × 5,575.72
  4. Step 4: Simplify right side
    8,405.88x = 64,707,680.29
  5. Step 5: Solve for x
    x = 64,707,680.29/8,405.88
  6. Step 6: Final answer
    x = 7,697.91

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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.