Home / 13,346.56-20,020.88-7,800.48

Finding the Fourth Proportional to 13,346.56, 20,020.88 and 7,800.48

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Solution

The fourth proportional to 13,346.56, 20,020.88 and 7,800.48 is: 11,701.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.56 : 20,020.88 = 7,800.48 : x
  2. Step 2: Convert to fraction form
    13,346.56/20,020.88 = 7,800.48/x
  3. Step 3: Cross multiply
    13,346.56x = 20,020.88 × 7,800.48
  4. Step 4: Simplify right side
    13,346.56x = 156,172,474.02
  5. Step 5: Solve for x
    x = 156,172,474.02/13,346.56
  6. Step 6: Final answer
    x = 11,701.33

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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.