Home / 7,639.46-11,441.40-7,429.25

Finding the Fourth Proportional to 7,639.46, 11,441.40 and 7,429.25

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Solution

The fourth proportional to 7,639.46, 11,441.40 and 7,429.25 is: 11,126.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.46 : 11,441.40 = 7,429.25 : x
  2. Step 2: Convert to fraction form
    7,639.46/11,441.40 = 7,429.25/x
  3. Step 3: Cross multiply
    7,639.46x = 11,441.40 × 7,429.25
  4. Step 4: Simplify right side
    7,639.46x = 85,000,963.74
  5. Step 5: Solve for x
    x = 85,000,963.74/7,639.46
  6. Step 6: Final answer
    x = 11,126.57

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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.