Home / 11,726.50-16,182.47-6,421.31

Finding the Fourth Proportional to 11,726.50, 16,182.47 and 6,421.31

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Solution

The fourth proportional to 11,726.50, 16,182.47 and 6,421.31 is: 8,861.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,726.50 : 16,182.47 = 6,421.31 : x
  2. Step 2: Convert to fraction form
    11,726.50/16,182.47 = 6,421.31/x
  3. Step 3: Cross multiply
    11,726.50x = 16,182.47 × 6,421.31
  4. Step 4: Simplify right side
    11,726.50x = 103,912,543.42
  5. Step 5: Solve for x
    x = 103,912,543.42/11,726.50
  6. Step 6: Final answer
    x = 8,861.34

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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.