Home / 13,239.47-19,845.42-4,469.60

Finding the Fourth Proportional to 13,239.47, 19,845.42 and 4,469.60

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Solution

The fourth proportional to 13,239.47, 19,845.42 and 4,469.60 is: 6,699.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.47 : 19,845.42 = 4,469.60 : x
  2. Step 2: Convert to fraction form
    13,239.47/19,845.42 = 4,469.60/x
  3. Step 3: Cross multiply
    13,239.47x = 19,845.42 × 4,469.60
  4. Step 4: Simplify right side
    13,239.47x = 88,700,990.00
  5. Step 5: Solve for x
    x = 88,700,990.00/13,239.47
  6. Step 6: Final answer
    x = 6,699.74

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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.