Home / 18,394.64-25,383.60-10,439.42

Finding the Fourth Proportional to 18,394.64, 25,383.60 and 10,439.42

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Solution

The fourth proportional to 18,394.64, 25,383.60 and 10,439.42 is: 14,405.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,394.64 : 25,383.60 = 10,439.42 : x
  2. Step 2: Convert to fraction form
    18,394.64/25,383.60 = 10,439.42/x
  3. Step 3: Cross multiply
    18,394.64x = 25,383.60 × 10,439.42
  4. Step 4: Simplify right side
    18,394.64x = 264,990,061.51
  5. Step 5: Solve for x
    x = 264,990,061.51/18,394.64
  6. Step 6: Final answer
    x = 14,405.83

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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.