Home / 7,639.40-11,464.50-4,517.48

Finding the Fourth Proportional to 7,639.40, 11,464.50 and 4,517.48

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Solution

The fourth proportional to 7,639.40, 11,464.50 and 4,517.48 is: 6,779.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.40 : 11,464.50 = 4,517.48 : x
  2. Step 2: Convert to fraction form
    7,639.40/11,464.50 = 4,517.48/x
  3. Step 3: Cross multiply
    7,639.40x = 11,464.50 × 4,517.48
  4. Step 4: Simplify right side
    7,639.40x = 51,790,649.46
  5. Step 5: Solve for x
    x = 51,790,649.46/7,639.40
  6. Step 6: Final answer
    x = 6,779.41

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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.