Home / 13,080.83-19,618.27-3,720.63

Finding the Fourth Proportional to 13,080.83, 19,618.27 and 3,720.63

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Solution

The fourth proportional to 13,080.83, 19,618.27 and 3,720.63 is: 5,580.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.83 : 19,618.27 = 3,720.63 : x
  2. Step 2: Convert to fraction form
    13,080.83/19,618.27 = 3,720.63/x
  3. Step 3: Cross multiply
    13,080.83x = 19,618.27 × 3,720.63
  4. Step 4: Simplify right side
    13,080.83x = 72,992,388.18
  5. Step 5: Solve for x
    x = 72,992,388.18/13,080.83
  6. Step 6: Final answer
    x = 5,580.11

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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.