Home / 14,705.75-20,292.32-8,331.86

Finding the Fourth Proportional to 14,705.75, 20,292.32 and 8,331.86

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Solution

The fourth proportional to 14,705.75, 20,292.32 and 8,331.86 is: 11,497.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,705.75 : 20,292.32 = 8,331.86 : x
  2. Step 2: Convert to fraction form
    14,705.75/20,292.32 = 8,331.86/x
  3. Step 3: Cross multiply
    14,705.75x = 20,292.32 × 8,331.86
  4. Step 4: Simplify right side
    14,705.75x = 169,072,840.88
  5. Step 5: Solve for x
    x = 169,072,840.88/14,705.75
  6. Step 6: Final answer
    x = 11,497.05

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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.