Home / 11,447.58-17,172.28-3,656.40

Finding the Fourth Proportional to 11,447.58, 17,172.28 and 3,656.40

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Solution

The fourth proportional to 11,447.58, 17,172.28 and 3,656.40 is: 5,484.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,447.58 : 17,172.28 = 3,656.40 : x
  2. Step 2: Convert to fraction form
    11,447.58/17,172.28 = 3,656.40/x
  3. Step 3: Cross multiply
    11,447.58x = 17,172.28 × 3,656.40
  4. Step 4: Simplify right side
    11,447.58x = 62,788,724.59
  5. Step 5: Solve for x
    x = 62,788,724.59/11,447.58
  6. Step 6: Final answer
    x = 5,484.89

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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.