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Finding the Fourth Proportional to 13,038.09, 17,992.24 and 7,217.02

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Solution

The fourth proportional to 13,038.09, 17,992.24 and 7,217.02 is: 9,959.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,038.09 : 17,992.24 = 7,217.02 : x
  2. Step 2: Convert to fraction form
    13,038.09/17,992.24 = 7,217.02/x
  3. Step 3: Cross multiply
    13,038.09x = 17,992.24 × 7,217.02
  4. Step 4: Simplify right side
    13,038.09x = 129,850,265.96
  5. Step 5: Solve for x
    x = 129,850,265.96/13,038.09
  6. Step 6: Final answer
    x = 9,959.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.