Home / 11,877.08-16,421.67-10,400.85

Finding the Fourth Proportional to 11,877.08, 16,421.67 and 10,400.85

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Solution

The fourth proportional to 11,877.08, 16,421.67 and 10,400.85 is: 14,380.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,877.08 : 16,421.67 = 10,400.85 : x
  2. Step 2: Convert to fraction form
    11,877.08/16,421.67 = 10,400.85/x
  3. Step 3: Cross multiply
    11,877.08x = 16,421.67 × 10,400.85
  4. Step 4: Simplify right side
    11,877.08x = 170,799,326.42
  5. Step 5: Solve for x
    x = 170,799,326.42/11,877.08
  6. Step 6: Final answer
    x = 14,380.59

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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.