Home / 13,841.90-19,099.93-7,872.43

Finding the Fourth Proportional to 13,841.90, 19,099.93 and 7,872.43

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Solution

The fourth proportional to 13,841.90, 19,099.93 and 7,872.43 is: 10,862.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,841.90 : 19,099.93 = 7,872.43 : x
  2. Step 2: Convert to fraction form
    13,841.90/19,099.93 = 7,872.43/x
  3. Step 3: Cross multiply
    13,841.90x = 19,099.93 × 7,872.43
  4. Step 4: Simplify right side
    13,841.90x = 150,362,861.93
  5. Step 5: Solve for x
    x = 150,362,861.93/13,841.90
  6. Step 6: Final answer
    x = 10,862.88

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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.