Home / 13,080.18-19,621.62-4,192.38

Finding the Fourth Proportional to 13,080.18, 19,621.62 and 4,192.38

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Solution

The fourth proportional to 13,080.18, 19,621.62 and 4,192.38 is: 6,289.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.18 : 19,621.62 = 4,192.38 : x
  2. Step 2: Convert to fraction form
    13,080.18/19,621.62 = 4,192.38/x
  3. Step 3: Cross multiply
    13,080.18x = 19,621.62 × 4,192.38
  4. Step 4: Simplify right side
    13,080.18x = 82,261,287.26
  5. Step 5: Solve for x
    x = 82,261,287.26/13,080.18
  6. Step 6: Final answer
    x = 6,289.00

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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.