Home / 12,579.18-17,359.56-6,914.22

Finding the Fourth Proportional to 12,579.18, 17,359.56 and 6,914.22

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Solution

The fourth proportional to 12,579.18, 17,359.56 and 6,914.22 is: 9,541.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.18 : 17,359.56 = 6,914.22 : x
  2. Step 2: Convert to fraction form
    12,579.18/17,359.56 = 6,914.22/x
  3. Step 3: Cross multiply
    12,579.18x = 17,359.56 × 6,914.22
  4. Step 4: Simplify right side
    12,579.18x = 120,027,816.94
  5. Step 5: Solve for x
    x = 120,027,816.94/12,579.18
  6. Step 6: Final answer
    x = 9,541.78

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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.