Home / 8,352.20-11,520.49-5,371.81

Finding the Fourth Proportional to 8,352.20, 11,520.49 and 5,371.81

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Solution

The fourth proportional to 8,352.20, 11,520.49 and 5,371.81 is: 7,409.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,352.20 : 11,520.49 = 5,371.81 : x
  2. Step 2: Convert to fraction form
    8,352.20/11,520.49 = 5,371.81/x
  3. Step 3: Cross multiply
    8,352.20x = 11,520.49 × 5,371.81
  4. Step 4: Simplify right side
    8,352.20x = 61,885,798.93
  5. Step 5: Solve for x
    x = 61,885,798.93/8,352.20
  6. Step 6: Final answer
    x = 7,409.52

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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.