Home / 8,440.96-11,632.08-6,078.64

Finding the Fourth Proportional to 8,440.96, 11,632.08 and 6,078.64

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Solution

The fourth proportional to 8,440.96, 11,632.08 and 6,078.64 is: 8,376.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.96 : 11,632.08 = 6,078.64 : x
  2. Step 2: Convert to fraction form
    8,440.96/11,632.08 = 6,078.64/x
  3. Step 3: Cross multiply
    8,440.96x = 11,632.08 × 6,078.64
  4. Step 4: Simplify right side
    8,440.96x = 70,707,226.77
  5. Step 5: Solve for x
    x = 70,707,226.77/8,440.96
  6. Step 6: Final answer
    x = 8,376.68

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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.