Home / 13,097.66-18,074.19-7,129.37

Finding the Fourth Proportional to 13,097.66, 18,074.19 and 7,129.37

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Solution

The fourth proportional to 13,097.66, 18,074.19 and 7,129.37 is: 9,838.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,097.66 : 18,074.19 = 7,129.37 : x
  2. Step 2: Convert to fraction form
    13,097.66/18,074.19 = 7,129.37/x
  3. Step 3: Cross multiply
    13,097.66x = 18,074.19 × 7,129.37
  4. Step 4: Simplify right side
    13,097.66x = 128,857,633.15
  5. Step 5: Solve for x
    x = 128,857,633.15/13,097.66
  6. Step 6: Final answer
    x = 9,838.22

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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.