Home / 13,889.78-20,836.82-4,527.60

Finding the Fourth Proportional to 13,889.78, 20,836.82 and 4,527.60

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Solution

The fourth proportional to 13,889.78, 20,836.82 and 4,527.60 is: 6,792.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.78 : 20,836.82 = 4,527.60 : x
  2. Step 2: Convert to fraction form
    13,889.78/20,836.82 = 4,527.60/x
  3. Step 3: Cross multiply
    13,889.78x = 20,836.82 × 4,527.60
  4. Step 4: Simplify right side
    13,889.78x = 94,340,763.59
  5. Step 5: Solve for x
    x = 94,340,763.59/13,889.78
  6. Step 6: Final answer
    x = 6,792.10

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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.