Home / 10,677.10-16,025.49-5,415.80

Finding the Fourth Proportional to 10,677.10, 16,025.49 and 5,415.80

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Solution

The fourth proportional to 10,677.10, 16,025.49 and 5,415.80 is: 8,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,677.10 : 16,025.49 = 5,415.80 : x
  2. Step 2: Convert to fraction form
    10,677.10/16,025.49 = 5,415.80/x
  3. Step 3: Cross multiply
    10,677.10x = 16,025.49 × 5,415.80
  4. Step 4: Simplify right side
    10,677.10x = 86,790,888.81
  5. Step 5: Solve for x
    x = 86,790,888.81/10,677.10
  6. Step 6: Final answer
    x = 8,128.70

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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.