Home / 7,981.88-11,015.06-4,445.42

Finding the Fourth Proportional to 7,981.88, 11,015.06 and 4,445.42

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Solution

The fourth proportional to 7,981.88, 11,015.06 and 4,445.42 is: 6,134.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.88 : 11,015.06 = 4,445.42 : x
  2. Step 2: Convert to fraction form
    7,981.88/11,015.06 = 4,445.42/x
  3. Step 3: Cross multiply
    7,981.88x = 11,015.06 × 4,445.42
  4. Step 4: Simplify right side
    7,981.88x = 48,966,490.72
  5. Step 5: Solve for x
    x = 48,966,490.72/7,981.88
  6. Step 6: Final answer
    x = 6,134.71

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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.