Home / 7,789.57-10,749.47-4,253.11

Finding the Fourth Proportional to 7,789.57, 10,749.47 and 4,253.11

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Solution

The fourth proportional to 7,789.57, 10,749.47 and 4,253.11 is: 5,869.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.57 : 10,749.47 = 4,253.11 : x
  2. Step 2: Convert to fraction form
    7,789.57/10,749.47 = 4,253.11/x
  3. Step 3: Cross multiply
    7,789.57x = 10,749.47 × 4,253.11
  4. Step 4: Simplify right side
    7,789.57x = 45,718,657.09
  5. Step 5: Solve for x
    x = 45,718,657.09/7,789.57
  6. Step 6: Final answer
    x = 5,869.21

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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.