Home / 8,931.33-13,396.86-3,087.99

Finding the Fourth Proportional to 8,931.33, 13,396.86 and 3,087.99

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Solution

The fourth proportional to 8,931.33, 13,396.86 and 3,087.99 is: 4,631.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.33 : 13,396.86 = 3,087.99 : x
  2. Step 2: Convert to fraction form
    8,931.33/13,396.86 = 3,087.99/x
  3. Step 3: Cross multiply
    8,931.33x = 13,396.86 × 3,087.99
  4. Step 4: Simplify right side
    8,931.33x = 41,369,369.71
  5. Step 5: Solve for x
    x = 41,369,369.71/8,931.33
  6. Step 6: Final answer
    x = 4,631.94

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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.