Home / 13,819.23-19,070.63-7,531.61

Finding the Fourth Proportional to 13,819.23, 19,070.63 and 7,531.61

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Solution

The fourth proportional to 13,819.23, 19,070.63 and 7,531.61 is: 10,393.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.23 : 19,070.63 = 7,531.61 : x
  2. Step 2: Convert to fraction form
    13,819.23/19,070.63 = 7,531.61/x
  3. Step 3: Cross multiply
    13,819.23x = 19,070.63 × 7,531.61
  4. Step 4: Simplify right side
    13,819.23x = 143,632,414.60
  5. Step 5: Solve for x
    x = 143,632,414.60/13,819.23
  6. Step 6: Final answer
    x = 10,393.66

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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.