Home / 11,919.54-16,445.16-7,941.36

Finding the Fourth Proportional to 11,919.54, 16,445.16 and 7,941.36

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Solution

The fourth proportional to 11,919.54, 16,445.16 and 7,941.36 is: 10,956.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,919.54 : 16,445.16 = 7,941.36 : x
  2. Step 2: Convert to fraction form
    11,919.54/16,445.16 = 7,941.36/x
  3. Step 3: Cross multiply
    11,919.54x = 16,445.16 × 7,941.36
  4. Step 4: Simplify right side
    11,919.54x = 130,596,935.82
  5. Step 5: Solve for x
    x = 130,596,935.82/11,919.54
  6. Step 6: Final answer
    x = 10,956.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.