Home / 10,166.50-14,025.85-6,388.12

Finding the Fourth Proportional to 10,166.50, 14,025.85 and 6,388.12

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Solution

The fourth proportional to 10,166.50, 14,025.85 and 6,388.12 is: 8,813.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,166.50 : 14,025.85 = 6,388.12 : x
  2. Step 2: Convert to fraction form
    10,166.50/14,025.85 = 6,388.12/x
  3. Step 3: Cross multiply
    10,166.50x = 14,025.85 × 6,388.12
  4. Step 4: Simplify right side
    10,166.50x = 89,598,812.90
  5. Step 5: Solve for x
    x = 89,598,812.90/10,166.50
  6. Step 6: Final answer
    x = 8,813.14

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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.