Home / 13,891.83-19,170.57-7,518.28

Finding the Fourth Proportional to 13,891.83, 19,170.57 and 7,518.28

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Solution

The fourth proportional to 13,891.83, 19,170.57 and 7,518.28 is: 10,375.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.83 : 19,170.57 = 7,518.28 : x
  2. Step 2: Convert to fraction form
    13,891.83/19,170.57 = 7,518.28/x
  3. Step 3: Cross multiply
    13,891.83x = 19,170.57 × 7,518.28
  4. Step 4: Simplify right side
    13,891.83x = 144,129,665.09
  5. Step 5: Solve for x
    x = 144,129,665.09/13,891.83
  6. Step 6: Final answer
    x = 10,375.14

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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.