Home / 7,639.54-11,457.15-2,707.72

Finding the Fourth Proportional to 7,639.54, 11,457.15 and 2,707.72

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Solution

The fourth proportional to 7,639.54, 11,457.15 and 2,707.72 is: 4,060.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.54 : 11,457.15 = 2,707.72 : x
  2. Step 2: Convert to fraction form
    7,639.54/11,457.15 = 2,707.72/x
  3. Step 3: Cross multiply
    7,639.54x = 11,457.15 × 2,707.72
  4. Step 4: Simplify right side
    7,639.54x = 31,022,754.20
  5. Step 5: Solve for x
    x = 31,022,754.20/7,639.54
  6. Step 6: Final answer
    x = 4,060.81

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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.