Home / 17,720.91-26,583.19-7,862.40

Finding the Fourth Proportional to 17,720.91, 26,583.19 and 7,862.40

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Solution

The fourth proportional to 17,720.91, 26,583.19 and 7,862.40 is: 11,794.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720.91 : 26,583.19 = 7,862.40 : x
  2. Step 2: Convert to fraction form
    17,720.91/26,583.19 = 7,862.40/x
  3. Step 3: Cross multiply
    17,720.91x = 26,583.19 × 7,862.40
  4. Step 4: Simplify right side
    17,720.91x = 209,007,653.40
  5. Step 5: Solve for x
    x = 209,007,653.40/17,720.91
  6. Step 6: Final answer
    x = 11,794.41

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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.