Home / 8,378.45-11,562.61-5,020.63

Finding the Fourth Proportional to 8,378.45, 11,562.61 and 5,020.63

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Solution

The fourth proportional to 8,378.45, 11,562.61 and 5,020.63 is: 6,928.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.45 : 11,562.61 = 5,020.63 : x
  2. Step 2: Convert to fraction form
    8,378.45/11,562.61 = 5,020.63/x
  3. Step 3: Cross multiply
    8,378.45x = 11,562.61 × 5,020.63
  4. Step 4: Simplify right side
    8,378.45x = 58,051,545.19
  5. Step 5: Solve for x
    x = 58,051,545.19/8,378.45
  6. Step 6: Final answer
    x = 6,928.68

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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.