Home / 18,223.20-25,147.92-10,265.40

Finding the Fourth Proportional to 18,223.20, 25,147.92 and 10,265.40

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Solution

The fourth proportional to 18,223.20, 25,147.92 and 10,265.40 is: 14,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,223.20 : 25,147.92 = 10,265.40 : x
  2. Step 2: Convert to fraction form
    18,223.20/25,147.92 = 10,265.40/x
  3. Step 3: Cross multiply
    18,223.20x = 25,147.92 × 10,265.40
  4. Step 4: Simplify right side
    18,223.20x = 258,153,457.97
  5. Step 5: Solve for x
    x = 258,153,457.97/18,223.20
  6. Step 6: Final answer
    x = 14,166.20

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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.