Home / 7,630.12-11,422.14-6,900.04

Finding the Fourth Proportional to 7,630.12, 11,422.14 and 6,900.04

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Solution

The fourth proportional to 7,630.12, 11,422.14 and 6,900.04 is: 10,329.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,630.12 : 11,422.14 = 6,900.04 : x
  2. Step 2: Convert to fraction form
    7,630.12/11,422.14 = 6,900.04/x
  3. Step 3: Cross multiply
    7,630.12x = 11,422.14 × 6,900.04
  4. Step 4: Simplify right side
    7,630.12x = 78,813,222.89
  5. Step 5: Solve for x
    x = 78,813,222.89/7,630.12
  6. Step 6: Final answer
    x = 10,329.22

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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.