Home / 19,876.20-29,838.60-10,998.60

Finding the Fourth Proportional to 19,876.20, 29,838.60 and 10,998.60

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Solution

The fourth proportional to 19,876.20, 29,838.60 and 10,998.60 is: 16,511.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,876.20 : 29,838.60 = 10,998.60 : x
  2. Step 2: Convert to fraction form
    19,876.20/29,838.60 = 10,998.60/x
  3. Step 3: Cross multiply
    19,876.20x = 29,838.60 × 10,998.60
  4. Step 4: Simplify right side
    19,876.20x = 328,182,825.96
  5. Step 5: Solve for x
    x = 328,182,825.96/19,876.20
  6. Step 6: Final answer
    x = 16,511.35

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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.