Home / 7,661.53-11,489.63-2,730.45

Finding the Fourth Proportional to 7,661.53, 11,489.63 and 2,730.45

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Solution

The fourth proportional to 7,661.53, 11,489.63 and 2,730.45 is: 4,094.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,661.53 : 11,489.63 = 2,730.45 : x
  2. Step 2: Convert to fraction form
    7,661.53/11,489.63 = 2,730.45/x
  3. Step 3: Cross multiply
    7,661.53x = 11,489.63 × 2,730.45
  4. Step 4: Simplify right side
    7,661.53x = 31,371,846.58
  5. Step 5: Solve for x
    x = 31,371,846.58/7,661.53
  6. Step 6: Final answer
    x = 4,094.72

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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.