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Finding the Fourth Proportional to 10,751.88, 16,128.58 and 2,854.33

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Solution

The fourth proportional to 10,751.88, 16,128.58 and 2,854.33 is: 4,281.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,751.88 : 16,128.58 = 2,854.33 : x
  2. Step 2: Convert to fraction form
    10,751.88/16,128.58 = 2,854.33/x
  3. Step 3: Cross multiply
    10,751.88x = 16,128.58 × 2,854.33
  4. Step 4: Simplify right side
    10,751.88x = 46,036,289.75
  5. Step 5: Solve for x
    x = 46,036,289.75/10,751.88
  6. Step 6: Final answer
    x = 4,281.70

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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.