Home / 7,981.71-11,014.62-4,397.01

Finding the Fourth Proportional to 7,981.71, 11,014.62 and 4,397.01

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Solution

The fourth proportional to 7,981.71, 11,014.62 and 4,397.01 is: 6,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.71 : 11,014.62 = 4,397.01 : x
  2. Step 2: Convert to fraction form
    7,981.71/11,014.62 = 4,397.01/x
  3. Step 3: Cross multiply
    7,981.71x = 11,014.62 × 4,397.01
  4. Step 4: Simplify right side
    7,981.71x = 48,431,369.47
  5. Step 5: Solve for x
    x = 48,431,369.47/7,981.71
  6. Step 6: Final answer
    x = 6,067.80

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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.