Home / 7,424.30-11,180.12-5,358.80

Finding the Fourth Proportional to 7,424.30, 11,180.12 and 5,358.80

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Solution

The fourth proportional to 7,424.30, 11,180.12 and 5,358.80 is: 8,069.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,424.30 : 11,180.12 = 5,358.80 : x
  2. Step 2: Convert to fraction form
    7,424.30/11,180.12 = 5,358.80/x
  3. Step 3: Cross multiply
    7,424.30x = 11,180.12 × 5,358.80
  4. Step 4: Simplify right side
    7,424.30x = 59,912,027.06
  5. Step 5: Solve for x
    x = 59,912,027.06/7,424.30
  6. Step 6: Final answer
    x = 8,069.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.