Home / 11,726.06-16,182.36-6,420.90

Finding the Fourth Proportional to 11,726.06, 16,182.36 and 6,420.90

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Solution

The fourth proportional to 11,726.06, 16,182.36 and 6,420.90 is: 8,861.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,726.06 : 16,182.36 = 6,420.90 : x
  2. Step 2: Convert to fraction form
    11,726.06/16,182.36 = 6,420.90/x
  3. Step 3: Cross multiply
    11,726.06x = 16,182.36 × 6,420.90
  4. Step 4: Simplify right side
    11,726.06x = 103,905,315.32
  5. Step 5: Solve for x
    x = 103,905,315.32/11,726.06
  6. Step 6: Final answer
    x = 8,861.06

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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.