Home / 6,877.18-9,486.21-4,187.71

Finding the Fourth Proportional to 6,877.18, 9,486.21 and 4,187.71

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Solution

The fourth proportional to 6,877.18, 9,486.21 and 4,187.71 is: 5,776.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,877.18 : 9,486.21 = 4,187.71 : x
  2. Step 2: Convert to fraction form
    6,877.18/9,486.21 = 4,187.71/x
  3. Step 3: Cross multiply
    6,877.18x = 9,486.21 × 4,187.71
  4. Step 4: Simplify right side
    6,877.18x = 39,725,496.48
  5. Step 5: Solve for x
    x = 39,725,496.48/6,877.18
  6. Step 6: Final answer
    x = 5,776.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.