Home / 9,871.52-13,616.34-5,889.56

Finding the Fourth Proportional to 9,871.52, 13,616.34 and 5,889.56

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Solution

The fourth proportional to 9,871.52, 13,616.34 and 5,889.56 is: 8,123.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,871.52 : 13,616.34 = 5,889.56 : x
  2. Step 2: Convert to fraction form
    9,871.52/13,616.34 = 5,889.56/x
  3. Step 3: Cross multiply
    9,871.52x = 13,616.34 × 5,889.56
  4. Step 4: Simplify right side
    9,871.52x = 80,194,251.41
  5. Step 5: Solve for x
    x = 80,194,251.41/9,871.52
  6. Step 6: Final answer
    x = 8,123.80

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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.