Home / 8,570.82-11,832.68-6,686.76

Finding the Fourth Proportional to 8,570.82, 11,832.68 and 6,686.76

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Solution

The fourth proportional to 8,570.82, 11,832.68 and 6,686.76 is: 9,231.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,570.82 : 11,832.68 = 6,686.76 : x
  2. Step 2: Convert to fraction form
    8,570.82/11,832.68 = 6,686.76/x
  3. Step 3: Cross multiply
    8,570.82x = 11,832.68 × 6,686.76
  4. Step 4: Simplify right side
    8,570.82x = 79,122,291.32
  5. Step 5: Solve for x
    x = 79,122,291.32/8,570.82
  6. Step 6: Final answer
    x = 9,231.59

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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.