Home / 8,931.36-13,399.26-2,691.23

Finding the Fourth Proportional to 8,931.36, 13,399.26 and 2,691.23

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Solution

The fourth proportional to 8,931.36, 13,399.26 and 2,691.23 is: 4,037.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.36 : 13,399.26 = 2,691.23 : x
  2. Step 2: Convert to fraction form
    8,931.36/13,399.26 = 2,691.23/x
  3. Step 3: Cross multiply
    8,931.36x = 13,399.26 × 2,691.23
  4. Step 4: Simplify right side
    8,931.36x = 36,060,490.49
  5. Step 5: Solve for x
    x = 36,060,490.49/8,931.36
  6. Step 6: Final answer
    x = 4,037.51

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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.