Home / 11,257.56-15,536.64-6,477.72

Finding the Fourth Proportional to 11,257.56, 15,536.64 and 6,477.72

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Solution

The fourth proportional to 11,257.56, 15,536.64 and 6,477.72 is: 8,939.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,257.56 : 15,536.64 = 6,477.72 : x
  2. Step 2: Convert to fraction form
    11,257.56/15,536.64 = 6,477.72/x
  3. Step 3: Cross multiply
    11,257.56x = 15,536.64 × 6,477.72
  4. Step 4: Simplify right side
    11,257.56x = 100,642,003.66
  5. Step 5: Solve for x
    x = 100,642,003.66/11,257.56
  6. Step 6: Final answer
    x = 8,939.95

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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.