Home / 7,990.61-11,018.43-5,599.82

Finding the Fourth Proportional to 7,990.61, 11,018.43 and 5,599.82

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Solution

The fourth proportional to 7,990.61, 11,018.43 and 5,599.82 is: 7,721.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.61 : 11,018.43 = 5,599.82 : x
  2. Step 2: Convert to fraction form
    7,990.61/11,018.43 = 5,599.82/x
  3. Step 3: Cross multiply
    7,990.61x = 11,018.43 × 5,599.82
  4. Step 4: Simplify right side
    7,990.61x = 61,701,169.59
  5. Step 5: Solve for x
    x = 61,701,169.59/7,990.61
  6. Step 6: Final answer
    x = 7,721.71

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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.