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Finding the Fourth Proportional to 8,335.66, 11,455.11 and 7,950.20

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Solution

The fourth proportional to 8,335.66, 11,455.11 and 7,950.20 is: 10,925.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,335.66 : 11,455.11 = 7,950.20 : x
  2. Step 2: Convert to fraction form
    8,335.66/11,455.11 = 7,950.20/x
  3. Step 3: Cross multiply
    8,335.66x = 11,455.11 × 7,950.20
  4. Step 4: Simplify right side
    8,335.66x = 91,070,415.52
  5. Step 5: Solve for x
    x = 91,070,415.52/8,335.66
  6. Step 6: Final answer
    x = 10,925.40

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Half scale
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Double scale
Find fourth proportional to 8,336.66, 11,456.48 and 7,951.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.