Home / 13,112.64-18,095.48-7,144.24

Finding the Fourth Proportional to 13,112.64, 18,095.48 and 7,144.24

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Solution

The fourth proportional to 13,112.64, 18,095.48 and 7,144.24 is: 9,859.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.64 : 18,095.48 = 7,144.24 : x
  2. Step 2: Convert to fraction form
    13,112.64/18,095.48 = 7,144.24/x
  3. Step 3: Cross multiply
    13,112.64x = 18,095.48 × 7,144.24
  4. Step 4: Simplify right side
    13,112.64x = 129,278,452.04
  5. Step 5: Solve for x
    x = 129,278,452.04/13,112.64
  6. Step 6: Final answer
    x = 9,859.07

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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.