Home / 8,127.93-12,190.65-2,580.55

Finding the Fourth Proportional to 8,127.93, 12,190.65 and 2,580.55

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Solution

The fourth proportional to 8,127.93, 12,190.65 and 2,580.55 is: 3,870.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.93 : 12,190.65 = 2,580.55 : x
  2. Step 2: Convert to fraction form
    8,127.93/12,190.65 = 2,580.55/x
  3. Step 3: Cross multiply
    8,127.93x = 12,190.65 × 2,580.55
  4. Step 4: Simplify right side
    8,127.93x = 31,458,581.86
  5. Step 5: Solve for x
    x = 31,458,581.86/8,127.93
  6. Step 6: Final answer
    x = 3,870.43

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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.