Home / 13,080.99-18,051.66-7,112.66

Finding the Fourth Proportional to 13,080.99, 18,051.66 and 7,112.66

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Solution

The fourth proportional to 13,080.99, 18,051.66 and 7,112.66 is: 9,815.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.99 : 18,051.66 = 7,112.66 : x
  2. Step 2: Convert to fraction form
    13,080.99/18,051.66 = 7,112.66/x
  3. Step 3: Cross multiply
    13,080.99x = 18,051.66 × 7,112.66
  4. Step 4: Simplify right side
    13,080.99x = 128,395,292.67
  5. Step 5: Solve for x
    x = 128,395,292.67/13,080.99
  6. Step 6: Final answer
    x = 9,815.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.