Home / 7,976.48-11,953.52-6,800.40

Finding the Fourth Proportional to 7,976.48, 11,953.52 and 6,800.40

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Solution

The fourth proportional to 7,976.48, 11,953.52 and 6,800.40 is: 10,191.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.48 : 11,953.52 = 6,800.40 : x
  2. Step 2: Convert to fraction form
    7,976.48/11,953.52 = 6,800.40/x
  3. Step 3: Cross multiply
    7,976.48x = 11,953.52 × 6,800.40
  4. Step 4: Simplify right side
    7,976.48x = 81,288,717.41
  5. Step 5: Solve for x
    x = 81,288,717.41/7,976.48
  6. Step 6: Final answer
    x = 10,191.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.