Home / 10,800.09-16,163.55-6,642.74

Finding the Fourth Proportional to 10,800.09, 16,163.55 and 6,642.74

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Solution

The fourth proportional to 10,800.09, 16,163.55 and 6,642.74 is: 9,941.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,800.09 : 16,163.55 = 6,642.74 : x
  2. Step 2: Convert to fraction form
    10,800.09/16,163.55 = 6,642.74/x
  3. Step 3: Cross multiply
    10,800.09x = 16,163.55 × 6,642.74
  4. Step 4: Simplify right side
    10,800.09x = 107,370,179.31
  5. Step 5: Solve for x
    x = 107,370,179.31/10,800.09
  6. Step 6: Final answer
    x = 9,941.60

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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.