Home / 13,292.86-18,344.20-7,324.40

Finding the Fourth Proportional to 13,292.86, 18,344.20 and 7,324.40

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Solution

The fourth proportional to 13,292.86, 18,344.20 and 7,324.40 is: 10,107.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.86 : 18,344.20 = 7,324.40 : x
  2. Step 2: Convert to fraction form
    13,292.86/18,344.20 = 7,324.40/x
  3. Step 3: Cross multiply
    13,292.86x = 18,344.20 × 7,324.40
  4. Step 4: Simplify right side
    13,292.86x = 134,360,258.48
  5. Step 5: Solve for x
    x = 134,360,258.48/13,292.86
  6. Step 6: Final answer
    x = 10,107.70

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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.