Home / 8,828.40-12,191.10-6,586.38

Finding the Fourth Proportional to 8,828.40, 12,191.10 and 6,586.38

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Solution

The fourth proportional to 8,828.40, 12,191.10 and 6,586.38 is: 9,095.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,828.40 : 12,191.10 = 6,586.38 : x
  2. Step 2: Convert to fraction form
    8,828.40/12,191.10 = 6,586.38/x
  3. Step 3: Cross multiply
    8,828.40x = 12,191.10 × 6,586.38
  4. Step 4: Simplify right side
    8,828.40x = 80,295,217.22
  5. Step 5: Solve for x
    x = 80,295,217.22/8,828.40
  6. Step 6: Final answer
    x = 9,095.10

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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.