Home / 13,705.96-20,546.52-8,776.84

Finding the Fourth Proportional to 13,705.96, 20,546.52 and 8,776.84

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Solution

The fourth proportional to 13,705.96, 20,546.52 and 8,776.84 is: 13,157.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,705.96 : 20,546.52 = 8,776.84 : x
  2. Step 2: Convert to fraction form
    13,705.96/20,546.52 = 8,776.84/x
  3. Step 3: Cross multiply
    13,705.96x = 20,546.52 × 8,776.84
  4. Step 4: Simplify right side
    13,705.96x = 180,333,518.60
  5. Step 5: Solve for x
    x = 180,333,518.60/13,705.96
  6. Step 6: Final answer
    x = 13,157.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.