Home / 13,818.80-19,073.67-7,850.72

Finding the Fourth Proportional to 13,818.80, 19,073.67 and 7,850.72

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Solution

The fourth proportional to 13,818.80, 19,073.67 and 7,850.72 is: 10,836.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.80 : 19,073.67 = 7,850.72 : x
  2. Step 2: Convert to fraction form
    13,818.80/19,073.67 = 7,850.72/x
  3. Step 3: Cross multiply
    13,818.80x = 19,073.67 × 7,850.72
  4. Step 4: Simplify right side
    13,818.80x = 149,742,042.54
  5. Step 5: Solve for x
    x = 149,742,042.54/13,818.80
  6. Step 6: Final answer
    x = 10,836.11

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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.