Home / 14,779.17-20,401.34-11,939.67

Finding the Fourth Proportional to 14,779.17, 20,401.34 and 11,939.67

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Solution

The fourth proportional to 14,779.17, 20,401.34 and 11,939.67 is: 16,481.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,779.17 : 20,401.34 = 11,939.67 : x
  2. Step 2: Convert to fraction form
    14,779.17/20,401.34 = 11,939.67/x
  3. Step 3: Cross multiply
    14,779.17x = 20,401.34 × 11,939.67
  4. Step 4: Simplify right side
    14,779.17x = 243,585,207.46
  5. Step 5: Solve for x
    x = 243,585,207.46/14,779.17
  6. Step 6: Final answer
    x = 16,481.66

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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.