Home / 18,168.64-25,091.76-12,518.08

Finding the Fourth Proportional to 18,168.64, 25,091.76 and 12,518.08

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Solution

The fourth proportional to 18,168.64, 25,091.76 and 12,518.08 is: 17,288.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,168.64 : 25,091.76 = 12,518.08 : x
  2. Step 2: Convert to fraction form
    18,168.64/25,091.76 = 12,518.08/x
  3. Step 3: Cross multiply
    18,168.64x = 25,091.76 × 12,518.08
  4. Step 4: Simplify right side
    18,168.64x = 314,100,659.02
  5. Step 5: Solve for x
    x = 314,100,659.02/18,168.64
  6. Step 6: Final answer
    x = 17,288.07

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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.