Home / 8,816.86-12,168.11-5,040.33

Finding the Fourth Proportional to 8,816.86, 12,168.11 and 5,040.33

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Solution

The fourth proportional to 8,816.86, 12,168.11 and 5,040.33 is: 6,956.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.86 : 12,168.11 = 5,040.33 : x
  2. Step 2: Convert to fraction form
    8,816.86/12,168.11 = 5,040.33/x
  3. Step 3: Cross multiply
    8,816.86x = 12,168.11 × 5,040.33
  4. Step 4: Simplify right side
    8,816.86x = 61,331,289.88
  5. Step 5: Solve for x
    x = 61,331,289.88/8,816.86
  6. Step 6: Final answer
    x = 6,956.14

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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.