Home / 13,913.24-20,876.71-6,516.42

Finding the Fourth Proportional to 13,913.24, 20,876.71 and 6,516.42

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Solution

The fourth proportional to 13,913.24, 20,876.71 and 6,516.42 is: 9,777.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.24 : 20,876.71 = 6,516.42 : x
  2. Step 2: Convert to fraction form
    13,913.24/20,876.71 = 6,516.42/x
  3. Step 3: Cross multiply
    13,913.24x = 20,876.71 × 6,516.42
  4. Step 4: Simplify right side
    13,913.24x = 136,041,394.29
  5. Step 5: Solve for x
    x = 136,041,394.29/13,913.24
  6. Step 6: Final answer
    x = 9,777.84

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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.