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Finding the Fourth Proportional to 9,012.77, 13,519.19 and 2,772.74

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Solution

The fourth proportional to 9,012.77, 13,519.19 and 2,772.74 is: 4,159.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,012.77 : 13,519.19 = 2,772.74 : x
  2. Step 2: Convert to fraction form
    9,012.77/13,519.19 = 2,772.74/x
  3. Step 3: Cross multiply
    9,012.77x = 13,519.19 × 2,772.74
  4. Step 4: Simplify right side
    9,012.77x = 37,485,185.02
  5. Step 5: Solve for x
    x = 37,485,185.02/9,012.77
  6. Step 6: Final answer
    x = 4,159.12

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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.