Home / 7,236.40-10,837.72-5,579.76

Finding the Fourth Proportional to 7,236.40, 10,837.72 and 5,579.76

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Solution

The fourth proportional to 7,236.40, 10,837.72 and 5,579.76 is: 8,356.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,236.40 : 10,837.72 = 5,579.76 : x
  2. Step 2: Convert to fraction form
    7,236.40/10,837.72 = 5,579.76/x
  3. Step 3: Cross multiply
    7,236.40x = 10,837.72 × 5,579.76
  4. Step 4: Simplify right side
    7,236.40x = 60,471,876.55
  5. Step 5: Solve for x
    x = 60,471,876.55/7,236.40
  6. Step 6: Final answer
    x = 8,356.62

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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.