Home / 19,013.12-28,449.60-11,872.48

Finding the Fourth Proportional to 19,013.12, 28,449.60 and 11,872.48

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Solution

The fourth proportional to 19,013.12, 28,449.60 and 11,872.48 is: 17,764.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,013.12 : 28,449.60 = 11,872.48 : x
  2. Step 2: Convert to fraction form
    19,013.12/28,449.60 = 11,872.48/x
  3. Step 3: Cross multiply
    19,013.12x = 28,449.60 × 11,872.48
  4. Step 4: Simplify right side
    19,013.12x = 337,767,307.01
  5. Step 5: Solve for x
    x = 337,767,307.01/19,013.12
  6. Step 6: Final answer
    x = 17,764.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.