Home / 14,775.38-20,389.93-8,401.97

Finding the Fourth Proportional to 14,775.38, 20,389.93 and 8,401.97

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Solution

The fourth proportional to 14,775.38, 20,389.93 and 8,401.97 is: 11,594.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,775.38 : 20,389.93 = 8,401.97 : x
  2. Step 2: Convert to fraction form
    14,775.38/20,389.93 = 8,401.97/x
  3. Step 3: Cross multiply
    14,775.38x = 20,389.93 × 8,401.97
  4. Step 4: Simplify right side
    14,775.38x = 171,315,538.15
  5. Step 5: Solve for x
    x = 171,315,538.15/14,775.38
  6. Step 6: Final answer
    x = 11,594.66

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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.