Home / 8,127.57-12,174.35-5,190.93

Finding the Fourth Proportional to 8,127.57, 12,174.35 and 5,190.93

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Solution

The fourth proportional to 8,127.57, 12,174.35 and 5,190.93 is: 7,775.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.57 : 12,174.35 = 5,190.93 : x
  2. Step 2: Convert to fraction form
    8,127.57/12,174.35 = 5,190.93/x
  3. Step 3: Cross multiply
    8,127.57x = 12,174.35 × 5,190.93
  4. Step 4: Simplify right side
    8,127.57x = 63,196,172.69
  5. Step 5: Solve for x
    x = 63,196,172.69/8,127.57
  6. Step 6: Final answer
    x = 7,775.53

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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.