Home / 18,411.12-27,582.12-9,183.60

Finding the Fourth Proportional to 18,411.12, 27,582.12 and 9,183.60

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Solution

The fourth proportional to 18,411.12, 27,582.12 and 9,183.60 is: 13,758.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,411.12 : 27,582.12 = 9,183.60 : x
  2. Step 2: Convert to fraction form
    18,411.12/27,582.12 = 9,183.60/x
  3. Step 3: Cross multiply
    18,411.12x = 27,582.12 × 9,183.60
  4. Step 4: Simplify right side
    18,411.12x = 253,303,157.23
  5. Step 5: Solve for x
    x = 253,303,157.23/18,411.12
  6. Step 6: Final answer
    x = 13,758.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.