Home / 19,103.61-28,656.19-4,872.46

Finding the Fourth Proportional to 19,103.61, 28,656.19 and 4,872.46

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Solution

The fourth proportional to 19,103.61, 28,656.19 and 4,872.46 is: 7,308.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,103.61 : 28,656.19 = 4,872.46 : x
  2. Step 2: Convert to fraction form
    19,103.61/28,656.19 = 4,872.46/x
  3. Step 3: Cross multiply
    19,103.61x = 28,656.19 × 4,872.46
  4. Step 4: Simplify right side
    19,103.61x = 139,625,996.25
  5. Step 5: Solve for x
    x = 139,625,996.25/19,103.61
  6. Step 6: Final answer
    x = 7,308.88

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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.