Home / 7,989.45-11,025.41-4,634.21

Finding the Fourth Proportional to 7,989.45, 11,025.41 and 4,634.21

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Solution

The fourth proportional to 7,989.45, 11,025.41 and 4,634.21 is: 6,395.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.45 : 11,025.41 = 4,634.21 : x
  2. Step 2: Convert to fraction form
    7,989.45/11,025.41 = 4,634.21/x
  3. Step 3: Cross multiply
    7,989.45x = 11,025.41 × 4,634.21
  4. Step 4: Simplify right side
    7,989.45x = 51,094,065.28
  5. Step 5: Solve for x
    x = 51,094,065.28/7,989.45
  6. Step 6: Final answer
    x = 6,395.19

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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.