Home / 10,401.36-14,349.78-6,415.56

Finding the Fourth Proportional to 10,401.36, 14,349.78 and 6,415.56

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Solution

The fourth proportional to 10,401.36, 14,349.78 and 6,415.56 is: 8,850.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,401.36 : 14,349.78 = 6,415.56 : x
  2. Step 2: Convert to fraction form
    10,401.36/14,349.78 = 6,415.56/x
  3. Step 3: Cross multiply
    10,401.36x = 14,349.78 × 6,415.56
  4. Step 4: Simplify right side
    10,401.36x = 92,061,874.58
  5. Step 5: Solve for x
    x = 92,061,874.58/10,401.36
  6. Step 6: Final answer
    x = 8,850.95

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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.