Home / 13,485.80-20,237.83-4,720.79

Finding the Fourth Proportional to 13,485.80, 20,237.83 and 4,720.79

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Solution

The fourth proportional to 13,485.80, 20,237.83 and 4,720.79 is: 7,084.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.80 : 20,237.83 = 4,720.79 : x
  2. Step 2: Convert to fraction form
    13,485.80/20,237.83 = 4,720.79/x
  3. Step 3: Cross multiply
    13,485.80x = 20,237.83 × 4,720.79
  4. Step 4: Simplify right side
    13,485.80x = 95,538,584.28
  5. Step 5: Solve for x
    x = 95,538,584.28/13,485.80
  6. Step 6: Final answer
    x = 7,084.38

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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.