Home / 11,639.08-17,447.28-6,434.02

Finding the Fourth Proportional to 11,639.08, 17,447.28 and 6,434.02

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Solution

The fourth proportional to 11,639.08, 17,447.28 and 6,434.02 is: 9,644.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.08 : 17,447.28 = 6,434.02 : x
  2. Step 2: Convert to fraction form
    11,639.08/17,447.28 = 6,434.02/x
  3. Step 3: Cross multiply
    11,639.08x = 17,447.28 × 6,434.02
  4. Step 4: Simplify right side
    11,639.08x = 112,256,148.47
  5. Step 5: Solve for x
    x = 112,256,148.47/11,639.08
  6. Step 6: Final answer
    x = 9,644.76

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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.