Home / 13,913.05-20,876.43-6,516.23

Finding the Fourth Proportional to 13,913.05, 20,876.43 and 6,516.23

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Solution

The fourth proportional to 13,913.05, 20,876.43 and 6,516.23 is: 9,777.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.05 : 20,876.43 = 6,516.23 : x
  2. Step 2: Convert to fraction form
    13,913.05/20,876.43 = 6,516.23/x
  3. Step 3: Cross multiply
    13,913.05x = 20,876.43 × 6,516.23
  4. Step 4: Simplify right side
    13,913.05x = 136,035,671.65
  5. Step 5: Solve for x
    x = 136,035,671.65/13,913.05
  6. Step 6: Final answer
    x = 9,777.56

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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.