Home / 13,112.26-18,095.35-7,144.18

Finding the Fourth Proportional to 13,112.26, 18,095.35 and 7,144.18

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Solution

The fourth proportional to 13,112.26, 18,095.35 and 7,144.18 is: 9,859.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.26 : 18,095.35 = 7,144.18 : x
  2. Step 2: Convert to fraction form
    13,112.26/18,095.35 = 7,144.18/x
  3. Step 3: Cross multiply
    13,112.26x = 18,095.35 × 7,144.18
  4. Step 4: Simplify right side
    13,112.26x = 129,276,437.56
  5. Step 5: Solve for x
    x = 129,276,437.56/13,112.26
  6. Step 6: Final answer
    x = 9,859.20

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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.