Home / 11,726.24-16,181.56-6,420.02

Finding the Fourth Proportional to 11,726.24, 16,181.56 and 6,420.02

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Solution

The fourth proportional to 11,726.24, 16,181.56 and 6,420.02 is: 8,859.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,726.24 : 16,181.56 = 6,420.02 : x
  2. Step 2: Convert to fraction form
    11,726.24/16,181.56 = 6,420.02/x
  3. Step 3: Cross multiply
    11,726.24x = 16,181.56 × 6,420.02
  4. Step 4: Simplify right side
    11,726.24x = 103,885,938.83
  5. Step 5: Solve for x
    x = 103,885,938.83/11,726.24
  6. Step 6: Final answer
    x = 8,859.27

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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.