Home / 13,042.51-17,984.40-9,691.54

Finding the Fourth Proportional to 13,042.51, 17,984.40 and 9,691.54

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Solution

The fourth proportional to 13,042.51, 17,984.40 and 9,691.54 is: 13,363.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,042.51 : 17,984.40 = 9,691.54 : x
  2. Step 2: Convert to fraction form
    13,042.51/17,984.40 = 9,691.54/x
  3. Step 3: Cross multiply
    13,042.51x = 17,984.40 × 9,691.54
  4. Step 4: Simplify right side
    13,042.51x = 174,296,450.67
  5. Step 5: Solve for x
    x = 174,296,450.67/13,042.51
  6. Step 6: Final answer
    x = 13,363.72

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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.