Home / 12,113.12-18,163.56-5,543.94

Finding the Fourth Proportional to 12,113.12, 18,163.56 and 5,543.94

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Solution

The fourth proportional to 12,113.12, 18,163.56 and 5,543.94 is: 8,313.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.12 : 18,163.56 = 5,543.94 : x
  2. Step 2: Convert to fraction form
    12,113.12/18,163.56 = 5,543.94/x
  3. Step 3: Cross multiply
    12,113.12x = 18,163.56 × 5,543.94
  4. Step 4: Simplify right side
    12,113.12x = 100,697,686.83
  5. Step 5: Solve for x
    x = 100,697,686.83/12,113.12
  6. Step 6: Final answer
    x = 8,313.11

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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.