Home / 7,620.38-11,390.02-6,625.16

Finding the Fourth Proportional to 7,620.38, 11,390.02 and 6,625.16

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Solution

The fourth proportional to 7,620.38, 11,390.02 and 6,625.16 is: 9,902.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.38 : 11,390.02 = 6,625.16 : x
  2. Step 2: Convert to fraction form
    7,620.38/11,390.02 = 6,625.16/x
  3. Step 3: Cross multiply
    7,620.38x = 11,390.02 × 6,625.16
  4. Step 4: Simplify right side
    7,620.38x = 75,460,704.90
  5. Step 5: Solve for x
    x = 75,460,704.90/7,620.38
  6. Step 6: Final answer
    x = 9,902.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.