Home / 13,682.17-18,881.40-7,394.54

Finding the Fourth Proportional to 13,682.17, 18,881.40 and 7,394.54

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Solution

The fourth proportional to 13,682.17, 18,881.40 and 7,394.54 is: 10,204.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,682.17 : 18,881.40 = 7,394.54 : x
  2. Step 2: Convert to fraction form
    13,682.17/18,881.40 = 7,394.54/x
  3. Step 3: Cross multiply
    13,682.17x = 18,881.40 × 7,394.54
  4. Step 4: Simplify right side
    13,682.17x = 139,619,267.56
  5. Step 5: Solve for x
    x = 139,619,267.56/13,682.17
  6. Step 6: Final answer
    x = 10,204.47

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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.