Home / 12,039.93-18,062.85-4,142.55

Finding the Fourth Proportional to 12,039.93, 18,062.85 and 4,142.55

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Solution

The fourth proportional to 12,039.93, 18,062.85 and 4,142.55 is: 6,214.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,039.93 : 18,062.85 = 4,142.55 : x
  2. Step 2: Convert to fraction form
    12,039.93/18,062.85 = 4,142.55/x
  3. Step 3: Cross multiply
    12,039.93x = 18,062.85 × 4,142.55
  4. Step 4: Simplify right side
    12,039.93x = 74,826,259.27
  5. Step 5: Solve for x
    x = 74,826,259.27/12,039.93
  6. Step 6: Final answer
    x = 6,214.84

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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.