Home / 18,134.46-25,041.57-11,431.32

Finding the Fourth Proportional to 18,134.46, 25,041.57 and 11,431.32

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Solution

The fourth proportional to 18,134.46, 25,041.57 and 11,431.32 is: 15,785.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,134.46 : 25,041.57 = 11,431.32 : x
  2. Step 2: Convert to fraction form
    18,134.46/25,041.57 = 11,431.32/x
  3. Step 3: Cross multiply
    18,134.46x = 25,041.57 × 11,431.32
  4. Step 4: Simplify right side
    18,134.46x = 286,258,199.97
  5. Step 5: Solve for x
    x = 286,258,199.97/18,134.46
  6. Step 6: Final answer
    x = 15,785.32

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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.