Home / 8,133.86-12,190.95-5,820.50

Finding the Fourth Proportional to 8,133.86, 12,190.95 and 5,820.50

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Solution

The fourth proportional to 8,133.86, 12,190.95 and 5,820.50 is: 8,723.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.86 : 12,190.95 = 5,820.50 : x
  2. Step 2: Convert to fraction form
    8,133.86/12,190.95 = 5,820.50/x
  3. Step 3: Cross multiply
    8,133.86x = 12,190.95 × 5,820.50
  4. Step 4: Simplify right side
    8,133.86x = 70,957,424.48
  5. Step 5: Solve for x
    x = 70,957,424.48/8,133.86
  6. Step 6: Final answer
    x = 8,723.71

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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.