Home / 13,946.16-20,919.64-4,085.45

Finding the Fourth Proportional to 13,946.16, 20,919.64 and 4,085.45

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Solution

The fourth proportional to 13,946.16, 20,919.64 and 4,085.45 is: 6,128.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,946.16 : 20,919.64 = 4,085.45 : x
  2. Step 2: Convert to fraction form
    13,946.16/20,919.64 = 4,085.45/x
  3. Step 3: Cross multiply
    13,946.16x = 20,919.64 × 4,085.45
  4. Step 4: Simplify right side
    13,946.16x = 85,466,028.43
  5. Step 5: Solve for x
    x = 85,466,028.43/13,946.16
  6. Step 6: Final answer
    x = 6,128.28

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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.