Home / 18,423.62-25,421.42-10,356.15

Finding the Fourth Proportional to 18,423.62, 25,421.42 and 10,356.15

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Solution

The fourth proportional to 18,423.62, 25,421.42 and 10,356.15 is: 14,289.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.62 : 25,421.42 = 10,356.15 : x
  2. Step 2: Convert to fraction form
    18,423.62/25,421.42 = 10,356.15/x
  3. Step 3: Cross multiply
    18,423.62x = 25,421.42 × 10,356.15
  4. Step 4: Simplify right side
    18,423.62x = 263,268,174.52
  5. Step 5: Solve for x
    x = 263,268,174.52/18,423.62
  6. Step 6: Final answer
    x = 14,289.71

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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.