Home / 8,520.13-11,756.83-4,742.42

Finding the Fourth Proportional to 8,520.13, 11,756.83 and 4,742.42

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Solution

The fourth proportional to 8,520.13, 11,756.83 and 4,742.42 is: 6,544.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.13 : 11,756.83 = 4,742.42 : x
  2. Step 2: Convert to fraction form
    8,520.13/11,756.83 = 4,742.42/x
  3. Step 3: Cross multiply
    8,520.13x = 11,756.83 × 4,742.42
  4. Step 4: Simplify right side
    8,520.13x = 55,755,813.87
  5. Step 5: Solve for x
    x = 55,755,813.87/8,520.13
  6. Step 6: Final answer
    x = 6,544.01

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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.