Home / 18,397.82-25,389.78-10,440.79

Finding the Fourth Proportional to 18,397.82, 25,389.78 and 10,440.79

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Solution

The fourth proportional to 18,397.82, 25,389.78 and 10,440.79 is: 14,408.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,397.82 : 25,389.78 = 10,440.79 : x
  2. Step 2: Convert to fraction form
    18,397.82/25,389.78 = 10,440.79/x
  3. Step 3: Cross multiply
    18,397.82x = 25,389.78 × 10,440.79
  4. Step 4: Simplify right side
    18,397.82x = 265,089,258.50
  5. Step 5: Solve for x
    x = 265,089,258.50/18,397.82
  6. Step 6: Final answer
    x = 14,408.73

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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.