Home / 13,819.10-19,070.84-7,850.58

Finding the Fourth Proportional to 13,819.10, 19,070.84 and 7,850.58

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Solution

The fourth proportional to 13,819.10, 19,070.84 and 7,850.58 is: 10,834.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.10 : 19,070.84 = 7,850.58 : x
  2. Step 2: Convert to fraction form
    13,819.10/19,070.84 = 7,850.58/x
  3. Step 3: Cross multiply
    13,819.10x = 19,070.84 × 7,850.58
  4. Step 4: Simplify right side
    13,819.10x = 149,717,155.09
  5. Step 5: Solve for x
    x = 149,717,155.09/13,819.10
  6. Step 6: Final answer
    x = 10,834.07

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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.