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Finding the Fourth Proportional to 11,305.61, 16,959.22 and 2,985.54

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Solution

The fourth proportional to 11,305.61, 16,959.22 and 2,985.54 is: 4,478.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,305.61 : 16,959.22 = 2,985.54 : x
  2. Step 2: Convert to fraction form
    11,305.61/16,959.22 = 2,985.54/x
  3. Step 3: Cross multiply
    11,305.61x = 16,959.22 × 2,985.54
  4. Step 4: Simplify right side
    11,305.61x = 50,632,429.68
  5. Step 5: Solve for x
    x = 50,632,429.68/11,305.61
  6. Step 6: Final answer
    x = 4,478.52

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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.