Home / 17,813.28-26,715.60-7,419.36

Finding the Fourth Proportional to 17,813.28, 26,715.60 and 7,419.36

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Solution

The fourth proportional to 17,813.28, 26,715.60 and 7,419.36 is: 11,127.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,813.28 : 26,715.60 = 7,419.36 : x
  2. Step 2: Convert to fraction form
    17,813.28/26,715.60 = 7,419.36/x
  3. Step 3: Cross multiply
    17,813.28x = 26,715.60 × 7,419.36
  4. Step 4: Simplify right side
    17,813.28x = 198,212,654.02
  5. Step 5: Solve for x
    x = 198,212,654.02/17,813.28
  6. Step 6: Final answer
    x = 11,127.24

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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.