Home / 8,690.27-11,991.68-5,333.23

Finding the Fourth Proportional to 8,690.27, 11,991.68 and 5,333.23

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Solution

The fourth proportional to 8,690.27, 11,991.68 and 5,333.23 is: 7,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.27 : 11,991.68 = 5,333.23 : x
  2. Step 2: Convert to fraction form
    8,690.27/11,991.68 = 5,333.23/x
  3. Step 3: Cross multiply
    8,690.27x = 11,991.68 × 5,333.23
  4. Step 4: Simplify right side
    8,690.27x = 63,954,313.40
  5. Step 5: Solve for x
    x = 63,954,313.40/8,690.27
  6. Step 6: Final answer
    x = 7,359.30

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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.