Home / 11,726.74-16,182.90-6,421.54

Finding the Fourth Proportional to 11,726.74, 16,182.90 and 6,421.54

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Solution

The fourth proportional to 11,726.74, 16,182.90 and 6,421.54 is: 8,861.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,726.74 : 16,182.90 = 6,421.54 : x
  2. Step 2: Convert to fraction form
    11,726.74/16,182.90 = 6,421.54/x
  3. Step 3: Cross multiply
    11,726.74x = 16,182.90 × 6,421.54
  4. Step 4: Simplify right side
    11,726.74x = 103,919,139.67
  5. Step 5: Solve for x
    x = 103,919,139.67/11,726.74
  6. Step 6: Final answer
    x = 8,861.72

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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.