Home / 10,833.20-14,949.81-6,117.78

Finding the Fourth Proportional to 10,833.20, 14,949.81 and 6,117.78

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Solution

The fourth proportional to 10,833.20, 14,949.81 and 6,117.78 is: 8,442.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,833.20 : 14,949.81 = 6,117.78 : x
  2. Step 2: Convert to fraction form
    10,833.20/14,949.81 = 6,117.78/x
  3. Step 3: Cross multiply
    10,833.20x = 14,949.81 × 6,117.78
  4. Step 4: Simplify right side
    10,833.20x = 91,459,648.62
  5. Step 5: Solve for x
    x = 91,459,648.62/10,833.20
  6. Step 6: Final answer
    x = 8,442.54

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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.