Home / 12,961.50-19,445.64-4,076.46

Finding the Fourth Proportional to 12,961.50, 19,445.64 and 4,076.46

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Solution

The fourth proportional to 12,961.50, 19,445.64 and 4,076.46 is: 6,115.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.50 : 19,445.64 = 4,076.46 : x
  2. Step 2: Convert to fraction form
    12,961.50/19,445.64 = 4,076.46/x
  3. Step 3: Cross multiply
    12,961.50x = 19,445.64 × 4,076.46
  4. Step 4: Simplify right side
    12,961.50x = 79,269,373.63
  5. Step 5: Solve for x
    x = 79,269,373.63/12,961.50
  6. Step 6: Final answer
    x = 6,115.76

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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.