Home / 13,819.20-19,070.48-7,531.59

Finding the Fourth Proportional to 13,819.20, 19,070.48 and 7,531.59

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Solution

The fourth proportional to 13,819.20, 19,070.48 and 7,531.59 is: 10,393.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.20 : 19,070.48 = 7,531.59 : x
  2. Step 2: Convert to fraction form
    13,819.20/19,070.48 = 7,531.59/x
  3. Step 3: Cross multiply
    13,819.20x = 19,070.48 × 7,531.59
  4. Step 4: Simplify right side
    13,819.20x = 143,630,998.81
  5. Step 5: Solve for x
    x = 143,630,998.81/13,819.20
  6. Step 6: Final answer
    x = 10,393.58

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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.