Home / 11,239.80-15,511.62-6,461.27

Finding the Fourth Proportional to 11,239.80, 15,511.62 and 6,461.27

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Solution

The fourth proportional to 11,239.80, 15,511.62 and 6,461.27 is: 8,916.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.80 : 15,511.62 = 6,461.27 : x
  2. Step 2: Convert to fraction form
    11,239.80/15,511.62 = 6,461.27/x
  3. Step 3: Cross multiply
    11,239.80x = 15,511.62 × 6,461.27
  4. Step 4: Simplify right side
    11,239.80x = 100,224,764.96
  5. Step 5: Solve for x
    x = 100,224,764.96/11,239.80
  6. Step 6: Final answer
    x = 8,916.95

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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.