Home / 18,230.81-25,158.53-9,847.31

Finding the Fourth Proportional to 18,230.81, 25,158.53 and 9,847.31

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Solution

The fourth proportional to 18,230.81, 25,158.53 and 9,847.31 is: 13,589.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,230.81 : 25,158.53 = 9,847.31 : x
  2. Step 2: Convert to fraction form
    18,230.81/25,158.53 = 9,847.31/x
  3. Step 3: Cross multiply
    18,230.81x = 25,158.53 × 9,847.31
  4. Step 4: Simplify right side
    18,230.81x = 247,743,857.71
  5. Step 5: Solve for x
    x = 247,743,857.71/18,230.81
  6. Step 6: Final answer
    x = 13,589.29

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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.