Home / 11,719.64-17,588.10-9,438.68

Finding the Fourth Proportional to 11,719.64, 17,588.10 and 9,438.68

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Solution

The fourth proportional to 11,719.64, 17,588.10 and 9,438.68 is: 14,164.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.64 : 17,588.10 = 9,438.68 : x
  2. Step 2: Convert to fraction form
    11,719.64/17,588.10 = 9,438.68/x
  3. Step 3: Cross multiply
    11,719.64x = 17,588.10 × 9,438.68
  4. Step 4: Simplify right side
    11,719.64x = 166,008,447.71
  5. Step 5: Solve for x
    x = 166,008,447.71/11,719.64
  6. Step 6: Final answer
    x = 14,164.98

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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.