Home / 7,116.43-9,818.83-4,879.01

Finding the Fourth Proportional to 7,116.43, 9,818.83 and 4,879.01

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Solution

The fourth proportional to 7,116.43, 9,818.83 and 4,879.01 is: 6,731.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,116.43 : 9,818.83 = 4,879.01 : x
  2. Step 2: Convert to fraction form
    7,116.43/9,818.83 = 4,879.01/x
  3. Step 3: Cross multiply
    7,116.43x = 9,818.83 × 4,879.01
  4. Step 4: Simplify right side
    7,116.43x = 47,906,169.76
  5. Step 5: Solve for x
    x = 47,906,169.76/7,116.43
  6. Step 6: Final answer
    x = 6,731.77

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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.