Home / 18,431.06-25,435.25-10,364.87

Finding the Fourth Proportional to 18,431.06, 25,435.25 and 10,364.87

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Solution

The fourth proportional to 18,431.06, 25,435.25 and 10,364.87 is: 14,303.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431.06 : 25,435.25 = 10,364.87 : x
  2. Step 2: Convert to fraction form
    18,431.06/25,435.25 = 10,364.87/x
  3. Step 3: Cross multiply
    18,431.06x = 25,435.25 × 10,364.87
  4. Step 4: Simplify right side
    18,431.06x = 263,633,007.84
  5. Step 5: Solve for x
    x = 263,633,007.84/18,431.06
  6. Step 6: Final answer
    x = 14,303.74

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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.