Home / 7,963.12-11,957.02-4,272.56

Finding the Fourth Proportional to 7,963.12, 11,957.02 and 4,272.56

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Solution

The fourth proportional to 7,963.12, 11,957.02 and 4,272.56 is: 6,415.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.12 : 11,957.02 = 4,272.56 : x
  2. Step 2: Convert to fraction form
    7,963.12/11,957.02 = 4,272.56/x
  3. Step 3: Cross multiply
    7,963.12x = 11,957.02 × 4,272.56
  4. Step 4: Simplify right side
    7,963.12x = 51,087,059.74
  5. Step 5: Solve for x
    x = 51,087,059.74/7,963.12
  6. Step 6: Final answer
    x = 6,415.46

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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.