Home / 6,917.40-10,380.78-4,572.36

Finding the Fourth Proportional to 6,917.40, 10,380.78 and 4,572.36

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Solution

The fourth proportional to 6,917.40, 10,380.78 and 4,572.36 is: 6,861.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,917.40 : 10,380.78 = 4,572.36 : x
  2. Step 2: Convert to fraction form
    6,917.40/10,380.78 = 4,572.36/x
  3. Step 3: Cross multiply
    6,917.40x = 10,380.78 × 4,572.36
  4. Step 4: Simplify right side
    6,917.40x = 47,464,663.24
  5. Step 5: Solve for x
    x = 47,464,663.24/6,917.40
  6. Step 6: Final answer
    x = 6,861.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.