Home / 13,183.52-18,195.28-7,518.26

Finding the Fourth Proportional to 13,183.52, 18,195.28 and 7,518.26

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Solution

The fourth proportional to 13,183.52, 18,195.28 and 7,518.26 is: 10,376.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.52 : 18,195.28 = 7,518.26 : x
  2. Step 2: Convert to fraction form
    13,183.52/18,195.28 = 7,518.26/x
  3. Step 3: Cross multiply
    13,183.52x = 18,195.28 × 7,518.26
  4. Step 4: Simplify right side
    13,183.52x = 136,796,845.81
  5. Step 5: Solve for x
    x = 136,796,845.81/13,183.52
  6. Step 6: Final answer
    x = 10,376.35

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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.