Home / 13,911.48-20,874.07-6,516.45

Finding the Fourth Proportional to 13,911.48, 20,874.07 and 6,516.45

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Solution

The fourth proportional to 13,911.48, 20,874.07 and 6,516.45 is: 9,777.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.48 : 20,874.07 = 6,516.45 : x
  2. Step 2: Convert to fraction form
    13,911.48/20,874.07 = 6,516.45/x
  3. Step 3: Cross multiply
    13,911.48x = 20,874.07 × 6,516.45
  4. Step 4: Simplify right side
    13,911.48x = 136,024,841.60
  5. Step 5: Solve for x
    x = 136,024,841.60/13,911.48
  6. Step 6: Final answer
    x = 9,777.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.