Home / 9,147.23-13,723.12-4,220.30

Finding the Fourth Proportional to 9,147.23, 13,723.12 and 4,220.30

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Solution

The fourth proportional to 9,147.23, 13,723.12 and 4,220.30 is: 6,331.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.23 : 13,723.12 = 4,220.30 : x
  2. Step 2: Convert to fraction form
    9,147.23/13,723.12 = 4,220.30/x
  3. Step 3: Cross multiply
    9,147.23x = 13,723.12 × 4,220.30
  4. Step 4: Simplify right side
    9,147.23x = 57,915,722.92
  5. Step 5: Solve for x
    x = 57,915,722.92/9,147.23
  6. Step 6: Final answer
    x = 6,331.50

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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.