Home / 12,951.20-17,872.48-7,285.95

Finding the Fourth Proportional to 12,951.20, 17,872.48 and 7,285.95

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Solution

The fourth proportional to 12,951.20, 17,872.48 and 7,285.95 is: 10,054.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,951.20 : 17,872.48 = 7,285.95 : x
  2. Step 2: Convert to fraction form
    12,951.20/17,872.48 = 7,285.95/x
  3. Step 3: Cross multiply
    12,951.20x = 17,872.48 × 7,285.95
  4. Step 4: Simplify right side
    12,951.20x = 130,218,004.76
  5. Step 5: Solve for x
    x = 130,218,004.76/12,951.20
  6. Step 6: Final answer
    x = 10,054.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.