Home / 7,416.66-11,115.36-5,553.12

Finding the Fourth Proportional to 7,416.66, 11,115.36 and 5,553.12

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Solution

The fourth proportional to 7,416.66, 11,115.36 and 5,553.12 is: 8,322.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,416.66 : 11,115.36 = 5,553.12 : x
  2. Step 2: Convert to fraction form
    7,416.66/11,115.36 = 5,553.12/x
  3. Step 3: Cross multiply
    7,416.66x = 11,115.36 × 5,553.12
  4. Step 4: Simplify right side
    7,416.66x = 61,724,927.92
  5. Step 5: Solve for x
    x = 61,724,927.92/7,416.66
  6. Step 6: Final answer
    x = 8,322.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.