Home / 10,751.83-16,128.77-4,178.53

Finding the Fourth Proportional to 10,751.83, 16,128.77 and 4,178.53

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Solution

The fourth proportional to 10,751.83, 16,128.77 and 4,178.53 is: 6,268.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,751.83 : 16,128.77 = 4,178.53 : x
  2. Step 2: Convert to fraction form
    10,751.83/16,128.77 = 4,178.53/x
  3. Step 3: Cross multiply
    10,751.83x = 16,128.77 × 4,178.53
  4. Step 4: Simplify right side
    10,751.83x = 67,394,549.31
  5. Step 5: Solve for x
    x = 67,394,549.31/10,751.83
  6. Step 6: Final answer
    x = 6,268.19

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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.