Home / 9,895.78-13,649.61-6,363.46

Finding the Fourth Proportional to 9,895.78, 13,649.61 and 6,363.46

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Solution

The fourth proportional to 9,895.78, 13,649.61 and 6,363.46 is: 8,777.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,895.78 : 13,649.61 = 6,363.46 : x
  2. Step 2: Convert to fraction form
    9,895.78/13,649.61 = 6,363.46/x
  3. Step 3: Cross multiply
    9,895.78x = 13,649.61 × 6,363.46
  4. Step 4: Simplify right side
    9,895.78x = 86,858,747.25
  5. Step 5: Solve for x
    x = 86,858,747.25/9,895.78
  6. Step 6: Final answer
    x = 8,777.35

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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.