Home / 26,016.80-39,015.60-8,487.20

Finding the Fourth Proportional to 26,016.80, 39,015.60 and 8,487.20

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Solution

The fourth proportional to 26,016.80, 39,015.60 and 8,487.20 is: 12,727.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,016.80 : 39,015.60 = 8,487.20 : x
  2. Step 2: Convert to fraction form
    26,016.80/39,015.60 = 8,487.20/x
  3. Step 3: Cross multiply
    26,016.80x = 39,015.60 × 8,487.20
  4. Step 4: Simplify right side
    26,016.80x = 331,133,200.32
  5. Step 5: Solve for x
    x = 331,133,200.32/26,016.80
  6. Step 6: Final answer
    x = 12,727.67

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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.