Home / 7,935.76-10,947.90-5,579.44

Finding the Fourth Proportional to 7,935.76, 10,947.90 and 5,579.44

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Solution

The fourth proportional to 7,935.76, 10,947.90 and 5,579.44 is: 7,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.76 : 10,947.90 = 5,579.44 : x
  2. Step 2: Convert to fraction form
    7,935.76/10,947.90 = 5,579.44/x
  3. Step 3: Cross multiply
    7,935.76x = 10,947.90 × 5,579.44
  4. Step 4: Simplify right side
    7,935.76x = 61,083,151.18
  5. Step 5: Solve for x
    x = 61,083,151.18/7,935.76
  6. Step 6: Final answer
    x = 7,697.20

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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.