Home / 7,639.32-11,463.36-4,129.36

Finding the Fourth Proportional to 7,639.32, 11,463.36 and 4,129.36

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Solution

The fourth proportional to 7,639.32, 11,463.36 and 4,129.36 is: 6,196.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.32 : 11,463.36 = 4,129.36 : x
  2. Step 2: Convert to fraction form
    7,639.32/11,463.36 = 4,129.36/x
  3. Step 3: Cross multiply
    7,639.32x = 11,463.36 × 4,129.36
  4. Step 4: Simplify right side
    7,639.32x = 47,336,340.25
  5. Step 5: Solve for x
    x = 47,336,340.25/7,639.32
  6. Step 6: Final answer
    x = 6,196.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.