Home / 7,977.15-10,997.06-5,611.95

Finding the Fourth Proportional to 7,977.15, 10,997.06 and 5,611.95

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Solution

The fourth proportional to 7,977.15, 10,997.06 and 5,611.95 is: 7,736.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.15 : 10,997.06 = 5,611.95 : x
  2. Step 2: Convert to fraction form
    7,977.15/10,997.06 = 5,611.95/x
  3. Step 3: Cross multiply
    7,977.15x = 10,997.06 × 5,611.95
  4. Step 4: Simplify right side
    7,977.15x = 61,714,950.87
  5. Step 5: Solve for x
    x = 61,714,950.87/7,977.15
  6. Step 6: Final answer
    x = 7,736.47

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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.