Home / 11,761.02-16,229.40-6,455.70

Finding the Fourth Proportional to 11,761.02, 16,229.40 and 6,455.70

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Solution

The fourth proportional to 11,761.02, 16,229.40 and 6,455.70 is: 8,908.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,761.02 : 16,229.40 = 6,455.70 : x
  2. Step 2: Convert to fraction form
    11,761.02/16,229.40 = 6,455.70/x
  3. Step 3: Cross multiply
    11,761.02x = 16,229.40 × 6,455.70
  4. Step 4: Simplify right side
    11,761.02x = 104,772,137.58
  5. Step 5: Solve for x
    x = 104,772,137.58/11,761.02
  6. Step 6: Final answer
    x = 8,908.42

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Half scale
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Double scale
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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.