Home / 8,472.24-12,707.55-5,183.64

Finding the Fourth Proportional to 8,472.24, 12,707.55 and 5,183.64

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Solution

The fourth proportional to 8,472.24, 12,707.55 and 5,183.64 is: 7,774.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.24 : 12,707.55 = 5,183.64 : x
  2. Step 2: Convert to fraction form
    8,472.24/12,707.55 = 5,183.64/x
  3. Step 3: Cross multiply
    8,472.24x = 12,707.55 × 5,183.64
  4. Step 4: Simplify right side
    8,472.24x = 65,871,364.48
  5. Step 5: Solve for x
    x = 65,871,364.48/8,472.24
  6. Step 6: Final answer
    x = 7,774.96

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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.