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Finding the Fourth Proportional to 8,590.30, 11,860.30 and 6,597.28

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Solution

The fourth proportional to 8,590.30, 11,860.30 and 6,597.28 is: 9,108.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.30 : 11,860.30 = 6,597.28 : x
  2. Step 2: Convert to fraction form
    8,590.30/11,860.30 = 6,597.28/x
  3. Step 3: Cross multiply
    8,590.30x = 11,860.30 × 6,597.28
  4. Step 4: Simplify right side
    8,590.30x = 78,245,719.98
  5. Step 5: Solve for x
    x = 78,245,719.98/8,590.30
  6. Step 6: Final answer
    x = 9,108.61

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Half scale
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Double scale
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Similar ratio
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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.