Home / 13,809.26-19,056.82-7,521.68

Finding the Fourth Proportional to 13,809.26, 19,056.82 and 7,521.68

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Solution

The fourth proportional to 13,809.26, 19,056.82 and 7,521.68 is: 10,379.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.26 : 19,056.82 = 7,521.68 : x
  2. Step 2: Convert to fraction form
    13,809.26/19,056.82 = 7,521.68/x
  3. Step 3: Cross multiply
    13,809.26x = 19,056.82 × 7,521.68
  4. Step 4: Simplify right side
    13,809.26x = 143,339,301.86
  5. Step 5: Solve for x
    x = 143,339,301.86/13,809.26
  6. Step 6: Final answer
    x = 10,379.94

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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.