Home / 8,689.28-13,033.91-3,493.94

Finding the Fourth Proportional to 8,689.28, 13,033.91 and 3,493.94

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Solution

The fourth proportional to 8,689.28, 13,033.91 and 3,493.94 is: 5,240.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.28 : 13,033.91 = 3,493.94 : x
  2. Step 2: Convert to fraction form
    8,689.28/13,033.91 = 3,493.94/x
  3. Step 3: Cross multiply
    8,689.28x = 13,033.91 × 3,493.94
  4. Step 4: Simplify right side
    8,689.28x = 45,539,699.51
  5. Step 5: Solve for x
    x = 45,539,699.51/8,689.28
  6. Step 6: Final answer
    x = 5,240.91

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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.