Home / 7,929.76-10,947.36-5,939.56

Finding the Fourth Proportional to 7,929.76, 10,947.36 and 5,939.56

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Solution

The fourth proportional to 7,929.76, 10,947.36 and 5,939.56 is: 8,199.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.76 : 10,947.36 = 5,939.56 : x
  2. Step 2: Convert to fraction form
    7,929.76/10,947.36 = 5,939.56/x
  3. Step 3: Cross multiply
    7,929.76x = 10,947.36 × 5,939.56
  4. Step 4: Simplify right side
    7,929.76x = 65,022,501.56
  5. Step 5: Solve for x
    x = 65,022,501.56/7,929.76
  6. Step 6: Final answer
    x = 8,199.81

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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.