Home / 11,285.90-15,574.55-6,181.39

Finding the Fourth Proportional to 11,285.90, 15,574.55 and 6,181.39

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Solution

The fourth proportional to 11,285.90, 15,574.55 and 6,181.39 is: 8,530.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.90 : 15,574.55 = 6,181.39 : x
  2. Step 2: Convert to fraction form
    11,285.90/15,574.55 = 6,181.39/x
  3. Step 3: Cross multiply
    11,285.90x = 15,574.55 × 6,181.39
  4. Step 4: Simplify right side
    11,285.90x = 96,272,367.62
  5. Step 5: Solve for x
    x = 96,272,367.62/11,285.90
  6. Step 6: Final answer
    x = 8,530.32

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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.