Home / 13,819.09-19,070.72-7,531.87

Finding the Fourth Proportional to 13,819.09, 19,070.72 and 7,531.87

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Solution

The fourth proportional to 13,819.09, 19,070.72 and 7,531.87 is: 10,394.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.09 : 19,070.72 = 7,531.87 : x
  2. Step 2: Convert to fraction form
    13,819.09/19,070.72 = 7,531.87/x
  3. Step 3: Cross multiply
    13,819.09x = 19,070.72 × 7,531.87
  4. Step 4: Simplify right side
    13,819.09x = 143,638,183.85
  5. Step 5: Solve for x
    x = 143,638,183.85/13,819.09
  6. Step 6: Final answer
    x = 10,394.19

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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.