Home / 7,127.57-9,829.68-4,475.23

Finding the Fourth Proportional to 7,127.57, 9,829.68 and 4,475.23

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Solution

The fourth proportional to 7,127.57, 9,829.68 and 4,475.23 is: 6,171.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.57 : 9,829.68 = 4,475.23 : x
  2. Step 2: Convert to fraction form
    7,127.57/9,829.68 = 4,475.23/x
  3. Step 3: Cross multiply
    7,127.57x = 9,829.68 × 4,475.23
  4. Step 4: Simplify right side
    7,127.57x = 43,990,078.83
  5. Step 5: Solve for x
    x = 43,990,078.83/7,127.57
  6. Step 6: Final answer
    x = 6,171.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.