Home / 12,728.79-19,100.62-5,332.63

Finding the Fourth Proportional to 12,728.79, 19,100.62 and 5,332.63

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Solution

The fourth proportional to 12,728.79, 19,100.62 and 5,332.63 is: 8,002.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,728.79 : 19,100.62 = 5,332.63 : x
  2. Step 2: Convert to fraction form
    12,728.79/19,100.62 = 5,332.63/x
  3. Step 3: Cross multiply
    12,728.79x = 19,100.62 × 5,332.63
  4. Step 4: Simplify right side
    12,728.79x = 101,856,539.23
  5. Step 5: Solve for x
    x = 101,856,539.23/12,728.79
  6. Step 6: Final answer
    x = 8,002.06

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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.