Home / 7,864.22-10,853.79-4,879.10

Finding the Fourth Proportional to 7,864.22, 10,853.79 and 4,879.10

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Solution

The fourth proportional to 7,864.22, 10,853.79 and 4,879.10 is: 6,733.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.22 : 10,853.79 = 4,879.10 : x
  2. Step 2: Convert to fraction form
    7,864.22/10,853.79 = 4,879.10/x
  3. Step 3: Cross multiply
    7,864.22x = 10,853.79 × 4,879.10
  4. Step 4: Simplify right side
    7,864.22x = 52,956,726.79
  5. Step 5: Solve for x
    x = 52,956,726.79/7,864.22
  6. Step 6: Final answer
    x = 6,733.88

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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.