Home / 8,768.56-12,103.32-6,116.86

Finding the Fourth Proportional to 8,768.56, 12,103.32 and 6,116.86

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Solution

The fourth proportional to 8,768.56, 12,103.32 and 6,116.86 is: 8,443.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.56 : 12,103.32 = 6,116.86 : x
  2. Step 2: Convert to fraction form
    8,768.56/12,103.32 = 6,116.86/x
  3. Step 3: Cross multiply
    8,768.56x = 12,103.32 × 6,116.86
  4. Step 4: Simplify right side
    8,768.56x = 74,034,313.98
  5. Step 5: Solve for x
    x = 74,034,313.98/8,768.56
  6. Step 6: Final answer
    x = 8,443.16

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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.