Home / 12,972.94-19,445.57-5,577.98

Finding the Fourth Proportional to 12,972.94, 19,445.57 and 5,577.98

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Solution

The fourth proportional to 12,972.94, 19,445.57 and 5,577.98 is: 8,361.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.94 : 19,445.57 = 5,577.98 : x
  2. Step 2: Convert to fraction form
    12,972.94/19,445.57 = 5,577.98/x
  3. Step 3: Cross multiply
    12,972.94x = 19,445.57 × 5,577.98
  4. Step 4: Simplify right side
    12,972.94x = 108,466,896.35
  5. Step 5: Solve for x
    x = 108,466,896.35/12,972.94
  6. Step 6: Final answer
    x = 8,361.01

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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.