Home / 18,401.45-25,394.72-10,443.74

Finding the Fourth Proportional to 18,401.45, 25,394.72 and 10,443.74

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Solution

The fourth proportional to 18,401.45, 25,394.72 and 10,443.74 is: 14,412.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,401.45 : 25,394.72 = 10,443.74 : x
  2. Step 2: Convert to fraction form
    18,401.45/25,394.72 = 10,443.74/x
  3. Step 3: Cross multiply
    18,401.45x = 25,394.72 × 10,443.74
  4. Step 4: Simplify right side
    18,401.45x = 265,215,673.86
  5. Step 5: Solve for x
    x = 265,215,673.86/18,401.45
  6. Step 6: Final answer
    x = 14,412.76

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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.