Home / 11,012.15-16,518.77-3,618.74

Finding the Fourth Proportional to 11,012.15, 16,518.77 and 3,618.74

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Solution

The fourth proportional to 11,012.15, 16,518.77 and 3,618.74 is: 5,428.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,012.15 : 16,518.77 = 3,618.74 : x
  2. Step 2: Convert to fraction form
    11,012.15/16,518.77 = 3,618.74/x
  3. Step 3: Cross multiply
    11,012.15x = 16,518.77 × 3,618.74
  4. Step 4: Simplify right side
    11,012.15x = 59,777,033.06
  5. Step 5: Solve for x
    x = 59,777,033.06/11,012.15
  6. Step 6: Final answer
    x = 5,428.28

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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.