Home / 18,631.42-25,709.20-10,673.18

Finding the Fourth Proportional to 18,631.42, 25,709.20 and 10,673.18

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Solution

The fourth proportional to 18,631.42, 25,709.20 and 10,673.18 is: 14,727.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.42 : 25,709.20 = 10,673.18 : x
  2. Step 2: Convert to fraction form
    18,631.42/25,709.20 = 10,673.18/x
  3. Step 3: Cross multiply
    18,631.42x = 25,709.20 × 10,673.18
  4. Step 4: Simplify right side
    18,631.42x = 274,398,919.26
  5. Step 5: Solve for x
    x = 274,398,919.26/18,631.42
  6. Step 6: Final answer
    x = 14,727.75

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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.