Home / 13,819.42-19,070.82-7,531.84

Finding the Fourth Proportional to 13,819.42, 19,070.82 and 7,531.84

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Solution

The fourth proportional to 13,819.42, 19,070.82 and 7,531.84 is: 10,393.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.42 : 19,070.82 = 7,531.84 : x
  2. Step 2: Convert to fraction form
    13,819.42/19,070.82 = 7,531.84/x
  3. Step 3: Cross multiply
    13,819.42x = 19,070.82 × 7,531.84
  4. Step 4: Simplify right side
    13,819.42x = 143,638,364.91
  5. Step 5: Solve for x
    x = 143,638,364.91/13,819.42
  6. Step 6: Final answer
    x = 10,393.95

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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.