Home / 10,977.18-16,465.78-5,137.89

Finding the Fourth Proportional to 10,977.18, 16,465.78 and 5,137.89

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Solution

The fourth proportional to 10,977.18, 16,465.78 and 5,137.89 is: 7,706.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.18 : 16,465.78 = 5,137.89 : x
  2. Step 2: Convert to fraction form
    10,977.18/16,465.78 = 5,137.89/x
  3. Step 3: Cross multiply
    10,977.18x = 16,465.78 × 5,137.89
  4. Step 4: Simplify right side
    10,977.18x = 84,599,372.83
  5. Step 5: Solve for x
    x = 84,599,372.83/10,977.18
  6. Step 6: Final answer
    x = 7,706.84

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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.