Home / 12,772.88-19,159.28-4,007.76

Finding the Fourth Proportional to 12,772.88, 19,159.28 and 4,007.76

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Solution

The fourth proportional to 12,772.88, 19,159.28 and 4,007.76 is: 6,011.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772.88 : 19,159.28 = 4,007.76 : x
  2. Step 2: Convert to fraction form
    12,772.88/19,159.28 = 4,007.76/x
  3. Step 3: Cross multiply
    12,772.88x = 19,159.28 × 4,007.76
  4. Step 4: Simplify right side
    12,772.88x = 76,785,796.01
  5. Step 5: Solve for x
    x = 76,785,796.01/12,772.88
  6. Step 6: Final answer
    x = 6,011.63

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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.