Home / 11,726.02-16,181.91-6,420.84

Finding the Fourth Proportional to 11,726.02, 16,181.91 and 6,420.84

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Solution

The fourth proportional to 11,726.02, 16,181.91 and 6,420.84 is: 8,860.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,726.02 : 16,181.91 = 6,420.84 : x
  2. Step 2: Convert to fraction form
    11,726.02/16,181.91 = 6,420.84/x
  3. Step 3: Cross multiply
    11,726.02x = 16,181.91 × 6,420.84
  4. Step 4: Simplify right side
    11,726.02x = 103,901,394.32
  5. Step 5: Solve for x
    x = 103,901,394.32/11,726.02
  6. Step 6: Final answer
    x = 8,860.76

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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.