Home / 8,818.14-12,168.56-5,040.80

Finding the Fourth Proportional to 8,818.14, 12,168.56 and 5,040.80

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Solution

The fourth proportional to 8,818.14, 12,168.56 and 5,040.80 is: 6,956.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.14 : 12,168.56 = 5,040.80 : x
  2. Step 2: Convert to fraction form
    8,818.14/12,168.56 = 5,040.80/x
  3. Step 3: Cross multiply
    8,818.14x = 12,168.56 × 5,040.80
  4. Step 4: Simplify right side
    8,818.14x = 61,339,277.25
  5. Step 5: Solve for x
    x = 61,339,277.25/8,818.14
  6. Step 6: Final answer
    x = 6,956.03

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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.