Home / 13,805.85-19,052.30-7,518.22

Finding the Fourth Proportional to 13,805.85, 19,052.30 and 7,518.22

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Solution

The fourth proportional to 13,805.85, 19,052.30 and 7,518.22 is: 10,375.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.85 : 19,052.30 = 7,518.22 : x
  2. Step 2: Convert to fraction form
    13,805.85/19,052.30 = 7,518.22/x
  3. Step 3: Cross multiply
    13,805.85x = 19,052.30 × 7,518.22
  4. Step 4: Simplify right side
    13,805.85x = 143,239,382.91
  5. Step 5: Solve for x
    x = 143,239,382.91/13,805.85
  6. Step 6: Final answer
    x = 10,375.27

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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.