Home / 13,877.40-20,813.94-4,517.58

Finding the Fourth Proportional to 13,877.40, 20,813.94 and 4,517.58

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Solution

The fourth proportional to 13,877.40, 20,813.94 and 4,517.58 is: 6,775.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.40 : 20,813.94 = 4,517.58 : x
  2. Step 2: Convert to fraction form
    13,877.40/20,813.94 = 4,517.58/x
  3. Step 3: Cross multiply
    13,877.40x = 20,813.94 × 4,517.58
  4. Step 4: Simplify right side
    13,877.40x = 94,028,639.07
  5. Step 5: Solve for x
    x = 94,028,639.07/13,877.40
  6. Step 6: Final answer
    x = 6,775.67

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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.