Home / 8,189.18-11,289.14-6,511.26

Finding the Fourth Proportional to 8,189.18, 11,289.14 and 6,511.26

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Solution

The fourth proportional to 8,189.18, 11,289.14 and 6,511.26 is: 8,976.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.18 : 11,289.14 = 6,511.26 : x
  2. Step 2: Convert to fraction form
    8,189.18/11,289.14 = 6,511.26/x
  3. Step 3: Cross multiply
    8,189.18x = 11,289.14 × 6,511.26
  4. Step 4: Simplify right side
    8,189.18x = 73,506,541.99
  5. Step 5: Solve for x
    x = 73,506,541.99/8,189.18
  6. Step 6: Final answer
    x = 8,976.06

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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.