Home / 11,328.18-16,989.30-5,084.70

Finding the Fourth Proportional to 11,328.18, 16,989.30 and 5,084.70

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Solution

The fourth proportional to 11,328.18, 16,989.30 and 5,084.70 is: 7,625.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.18 : 16,989.30 = 5,084.70 : x
  2. Step 2: Convert to fraction form
    11,328.18/16,989.30 = 5,084.70/x
  3. Step 3: Cross multiply
    11,328.18x = 16,989.30 × 5,084.70
  4. Step 4: Simplify right side
    11,328.18x = 86,385,493.71
  5. Step 5: Solve for x
    x = 86,385,493.71/11,328.18
  6. Step 6: Final answer
    x = 7,625.72

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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.