Home / 8,628.64-12,884.48-6,853.72

Finding the Fourth Proportional to 8,628.64, 12,884.48 and 6,853.72

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Solution

The fourth proportional to 8,628.64, 12,884.48 and 6,853.72 is: 10,234.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628.64 : 12,884.48 = 6,853.72 : x
  2. Step 2: Convert to fraction form
    8,628.64/12,884.48 = 6,853.72/x
  3. Step 3: Cross multiply
    8,628.64x = 12,884.48 × 6,853.72
  4. Step 4: Simplify right side
    8,628.64x = 88,306,618.27
  5. Step 5: Solve for x
    x = 88,306,618.27/8,628.64
  6. Step 6: Final answer
    x = 10,234.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.