Home / 8,320.05-12,485.44-5,358.18

Finding the Fourth Proportional to 8,320.05, 12,485.44 and 5,358.18

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Solution

The fourth proportional to 8,320.05, 12,485.44 and 5,358.18 is: 8,040.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.05 : 12,485.44 = 5,358.18 : x
  2. Step 2: Convert to fraction form
    8,320.05/12,485.44 = 5,358.18/x
  3. Step 3: Cross multiply
    8,320.05x = 12,485.44 × 5,358.18
  4. Step 4: Simplify right side
    8,320.05x = 66,899,288.42
  5. Step 5: Solve for x
    x = 66,899,288.42/8,320.05
  6. Step 6: Final answer
    x = 8,040.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.