Home / 13,080.06-19,620.72-4,314.78

Finding the Fourth Proportional to 13,080.06, 19,620.72 and 4,314.78

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Solution

The fourth proportional to 13,080.06, 19,620.72 and 4,314.78 is: 6,472.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.06 : 19,620.72 = 4,314.78 : x
  2. Step 2: Convert to fraction form
    13,080.06/19,620.72 = 4,314.78/x
  3. Step 3: Cross multiply
    13,080.06x = 19,620.72 × 4,314.78
  4. Step 4: Simplify right side
    13,080.06x = 84,659,090.24
  5. Step 5: Solve for x
    x = 84,659,090.24/13,080.06
  6. Step 6: Final answer
    x = 6,472.38

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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.