Home / 8,931.64-13,398.11-2,357.75

Finding the Fourth Proportional to 8,931.64, 13,398.11 and 2,357.75

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Solution

The fourth proportional to 8,931.64, 13,398.11 and 2,357.75 is: 3,536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.64 : 13,398.11 = 2,357.75 : x
  2. Step 2: Convert to fraction form
    8,931.64/13,398.11 = 2,357.75/x
  3. Step 3: Cross multiply
    8,931.64x = 13,398.11 × 2,357.75
  4. Step 4: Simplify right side
    8,931.64x = 31,589,393.85
  5. Step 5: Solve for x
    x = 31,589,393.85/8,931.64
  6. Step 6: Final answer
    x = 3,536.80

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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.