Home / 8,279.70-11,425.93-4,742.83

Finding the Fourth Proportional to 8,279.70, 11,425.93 and 4,742.83

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Solution

The fourth proportional to 8,279.70, 11,425.93 and 4,742.83 is: 6,545.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.70 : 11,425.93 = 4,742.83 : x
  2. Step 2: Convert to fraction form
    8,279.70/11,425.93 = 4,742.83/x
  3. Step 3: Cross multiply
    8,279.70x = 11,425.93 × 4,742.83
  4. Step 4: Simplify right side
    8,279.70x = 54,191,243.58
  5. Step 5: Solve for x
    x = 54,191,243.58/8,279.70
  6. Step 6: Final answer
    x = 6,545.07

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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.