Home / 11,878.12-16,391.56-6,572.80

Finding the Fourth Proportional to 11,878.12, 16,391.56 and 6,572.80

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Solution

The fourth proportional to 11,878.12, 16,391.56 and 6,572.80 is: 9,070.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,878.12 : 16,391.56 = 6,572.80 : x
  2. Step 2: Convert to fraction form
    11,878.12/16,391.56 = 6,572.80/x
  3. Step 3: Cross multiply
    11,878.12x = 16,391.56 × 6,572.80
  4. Step 4: Simplify right side
    11,878.12x = 107,738,445.57
  5. Step 5: Solve for x
    x = 107,738,445.57/11,878.12
  6. Step 6: Final answer
    x = 9,070.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.