Home / 9,485.80-14,217.60-7,138.28

Finding the Fourth Proportional to 9,485.80, 14,217.60 and 7,138.28

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Solution

The fourth proportional to 9,485.80, 14,217.60 and 7,138.28 is: 10,699.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,485.80 : 14,217.60 = 7,138.28 : x
  2. Step 2: Convert to fraction form
    9,485.80/14,217.60 = 7,138.28/x
  3. Step 3: Cross multiply
    9,485.80x = 14,217.60 × 7,138.28
  4. Step 4: Simplify right side
    9,485.80x = 101,489,245.27
  5. Step 5: Solve for x
    x = 101,489,245.27/9,485.80
  6. Step 6: Final answer
    x = 10,699.07

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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.