Home / 7,789.11-10,749.92-4,432.74

Finding the Fourth Proportional to 7,789.11, 10,749.92 and 4,432.74

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Solution

The fourth proportional to 7,789.11, 10,749.92 and 4,432.74 is: 6,117.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.11 : 10,749.92 = 4,432.74 : x
  2. Step 2: Convert to fraction form
    7,789.11/10,749.92 = 4,432.74/x
  3. Step 3: Cross multiply
    7,789.11x = 10,749.92 × 4,432.74
  4. Step 4: Simplify right side
    7,789.11x = 47,651,578.22
  5. Step 5: Solve for x
    x = 47,651,578.22/7,789.11
  6. Step 6: Final answer
    x = 6,117.72

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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.