Home / 6,687.36-10,011.60-5,579.28

Finding the Fourth Proportional to 6,687.36, 10,011.60 and 5,579.28

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Solution

The fourth proportional to 6,687.36, 10,011.60 and 5,579.28 is: 8,352.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.36 : 10,011.60 = 5,579.28 : x
  2. Step 2: Convert to fraction form
    6,687.36/10,011.60 = 5,579.28/x
  3. Step 3: Cross multiply
    6,687.36x = 10,011.60 × 5,579.28
  4. Step 4: Simplify right side
    6,687.36x = 55,857,519.65
  5. Step 5: Solve for x
    x = 55,857,519.65/6,687.36
  6. Step 6: Final answer
    x = 8,352.70

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1.5x scale

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.