Home / 13,915.28-20,871.84-5,592.92

Finding the Fourth Proportional to 13,915.28, 20,871.84 and 5,592.92

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Solution

The fourth proportional to 13,915.28, 20,871.84 and 5,592.92 is: 8,388.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.28 : 20,871.84 = 5,592.92 : x
  2. Step 2: Convert to fraction form
    13,915.28/20,871.84 = 5,592.92/x
  3. Step 3: Cross multiply
    13,915.28x = 20,871.84 × 5,592.92
  4. Step 4: Simplify right side
    13,915.28x = 116,734,531.37
  5. Step 5: Solve for x
    x = 116,734,531.37/13,915.28
  6. Step 6: Final answer
    x = 8,388.95

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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.