Home / 11,550.76-15,939.98-6,515.03

Finding the Fourth Proportional to 11,550.76, 15,939.98 and 6,515.03

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Solution

The fourth proportional to 11,550.76, 15,939.98 and 6,515.03 is: 8,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,550.76 : 15,939.98 = 6,515.03 : x
  2. Step 2: Convert to fraction form
    11,550.76/15,939.98 = 6,515.03/x
  3. Step 3: Cross multiply
    11,550.76x = 15,939.98 × 6,515.03
  4. Step 4: Simplify right side
    11,550.76x = 103,849,447.90
  5. Step 5: Solve for x
    x = 103,849,447.90/11,550.76
  6. Step 6: Final answer
    x = 8,990.70

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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.