Home / 11,115.64-15,326.94-10,437.76

Finding the Fourth Proportional to 11,115.64, 15,326.94 and 10,437.76

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Solution

The fourth proportional to 11,115.64, 15,326.94 and 10,437.76 is: 14,392.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.64 : 15,326.94 = 10,437.76 : x
  2. Step 2: Convert to fraction form
    11,115.64/15,326.94 = 10,437.76/x
  3. Step 3: Cross multiply
    11,115.64x = 15,326.94 × 10,437.76
  4. Step 4: Simplify right side
    11,115.64x = 159,978,921.25
  5. Step 5: Solve for x
    x = 159,978,921.25/11,115.64
  6. Step 6: Final answer
    x = 14,392.24

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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.