Home / 18,311.64-25,268.68-12,351.40

Finding the Fourth Proportional to 18,311.64, 25,268.68 and 12,351.40

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Solution

The fourth proportional to 18,311.64, 25,268.68 and 12,351.40 is: 17,044.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.64 : 25,268.68 = 12,351.40 : x
  2. Step 2: Convert to fraction form
    18,311.64/25,268.68 = 12,351.40/x
  3. Step 3: Cross multiply
    18,311.64x = 25,268.68 × 12,351.40
  4. Step 4: Simplify right side
    18,311.64x = 312,103,574.15
  5. Step 5: Solve for x
    x = 312,103,574.15/18,311.64
  6. Step 6: Final answer
    x = 17,044.00

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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.