Home / 7,006.38-10,480.84-6,390.60

Finding the Fourth Proportional to 7,006.38, 10,480.84 and 6,390.60

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Solution

The fourth proportional to 7,006.38, 10,480.84 and 6,390.60 is: 9,559.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,006.38 : 10,480.84 = 6,390.60 : x
  2. Step 2: Convert to fraction form
    7,006.38/10,480.84 = 6,390.60/x
  3. Step 3: Cross multiply
    7,006.38x = 10,480.84 × 6,390.60
  4. Step 4: Simplify right side
    7,006.38x = 66,978,856.10
  5. Step 5: Solve for x
    x = 66,978,856.10/7,006.38
  6. Step 6: Final answer
    x = 9,559.70

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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.