Home / 13,682.41-18,881.75-7,394.79

Finding the Fourth Proportional to 13,682.41, 18,881.75 and 7,394.79

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Solution

The fourth proportional to 13,682.41, 18,881.75 and 7,394.79 is: 10,204.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,682.41 : 18,881.75 = 7,394.79 : x
  2. Step 2: Convert to fraction form
    13,682.41/18,881.75 = 7,394.79/x
  3. Step 3: Cross multiply
    13,682.41x = 18,881.75 × 7,394.79
  4. Step 4: Simplify right side
    13,682.41x = 139,626,576.08
  5. Step 5: Solve for x
    x = 139,626,576.08/13,682.41
  6. Step 6: Final answer
    x = 10,204.82

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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.