Home / 13,805.55-20,709.05-3,946.32

Finding the Fourth Proportional to 13,805.55, 20,709.05 and 3,946.32

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Solution

The fourth proportional to 13,805.55, 20,709.05 and 3,946.32 is: 5,919.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.55 : 20,709.05 = 3,946.32 : x
  2. Step 2: Convert to fraction form
    13,805.55/20,709.05 = 3,946.32/x
  3. Step 3: Cross multiply
    13,805.55x = 20,709.05 × 3,946.32
  4. Step 4: Simplify right side
    13,805.55x = 81,724,518.46
  5. Step 5: Solve for x
    x = 81,724,518.46/13,805.55
  6. Step 6: Final answer
    x = 5,919.69

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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.