Home / 8,726.44-12,039.78-4,999.72

Finding the Fourth Proportional to 8,726.44, 12,039.78 and 4,999.72

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Solution

The fourth proportional to 8,726.44, 12,039.78 and 4,999.72 is: 6,898.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,726.44 : 12,039.78 = 4,999.72 : x
  2. Step 2: Convert to fraction form
    8,726.44/12,039.78 = 4,999.72/x
  3. Step 3: Cross multiply
    8,726.44x = 12,039.78 × 4,999.72
  4. Step 4: Simplify right side
    8,726.44x = 60,195,528.86
  5. Step 5: Solve for x
    x = 60,195,528.86/8,726.44
  6. Step 6: Final answer
    x = 6,898.06

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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.