Home / 13,819.12-19,069.68-7,531.44

Finding the Fourth Proportional to 13,819.12, 19,069.68 and 7,531.44

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Solution

The fourth proportional to 13,819.12, 19,069.68 and 7,531.44 is: 10,393.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.12 : 19,069.68 = 7,531.44 : x
  2. Step 2: Convert to fraction form
    13,819.12/19,069.68 = 7,531.44/x
  3. Step 3: Cross multiply
    13,819.12x = 19,069.68 × 7,531.44
  4. Step 4: Simplify right side
    13,819.12x = 143,622,150.74
  5. Step 5: Solve for x
    x = 143,622,150.74/13,819.12
  6. Step 6: Final answer
    x = 10,393.00

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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.