Home / 8,931.81-13,393.83-3,934.08

Finding the Fourth Proportional to 8,931.81, 13,393.83 and 3,934.08

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Solution

The fourth proportional to 8,931.81, 13,393.83 and 3,934.08 is: 5,899.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.81 : 13,393.83 = 3,934.08 : x
  2. Step 2: Convert to fraction form
    8,931.81/13,393.83 = 3,934.08/x
  3. Step 3: Cross multiply
    8,931.81x = 13,393.83 × 3,934.08
  4. Step 4: Simplify right side
    8,931.81x = 52,692,398.73
  5. Step 5: Solve for x
    x = 52,692,398.73/8,931.81
  6. Step 6: Final answer
    x = 5,899.41

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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.