Home / 13,809.11-19,056.38-7,521.48

Finding the Fourth Proportional to 13,809.11, 19,056.38 and 7,521.48

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Solution

The fourth proportional to 13,809.11, 19,056.38 and 7,521.48 is: 10,379.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.11 : 19,056.38 = 7,521.48 : x
  2. Step 2: Convert to fraction form
    13,809.11/19,056.38 = 7,521.48/x
  3. Step 3: Cross multiply
    13,809.11x = 19,056.38 × 7,521.48
  4. Step 4: Simplify right side
    13,809.11x = 143,332,143.44
  5. Step 5: Solve for x
    x = 143,332,143.44/13,809.11
  6. Step 6: Final answer
    x = 10,379.54

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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.