Home / 13,946.90-20,904.15-5,622.80

Finding the Fourth Proportional to 13,946.90, 20,904.15 and 5,622.80

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Solution

The fourth proportional to 13,946.90, 20,904.15 and 5,622.80 is: 8,427.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,946.90 : 20,904.15 = 5,622.80 : x
  2. Step 2: Convert to fraction form
    13,946.90/20,904.15 = 5,622.80/x
  3. Step 3: Cross multiply
    13,946.90x = 20,904.15 × 5,622.80
  4. Step 4: Simplify right side
    13,946.90x = 117,539,854.62
  5. Step 5: Solve for x
    x = 117,539,854.62/13,946.90
  6. Step 6: Final answer
    x = 8,427.67

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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.