Home / 11,278.10-15,561.83-6,496.98

Finding the Fourth Proportional to 11,278.10, 15,561.83 and 6,496.98

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Solution

The fourth proportional to 11,278.10, 15,561.83 and 6,496.98 is: 8,964.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.10 : 15,561.83 = 6,496.98 : x
  2. Step 2: Convert to fraction form
    11,278.10/15,561.83 = 6,496.98/x
  3. Step 3: Cross multiply
    11,278.10x = 15,561.83 × 6,496.98
  4. Step 4: Simplify right side
    11,278.10x = 101,104,898.27
  5. Step 5: Solve for x
    x = 101,104,898.27/11,278.10
  6. Step 6: Final answer
    x = 8,964.71

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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.