Home / 12,758.90-19,134.10-5,361.98

Finding the Fourth Proportional to 12,758.90, 19,134.10 and 5,361.98

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Solution

The fourth proportional to 12,758.90, 19,134.10 and 5,361.98 is: 8,041.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,758.90 : 19,134.10 = 5,361.98 : x
  2. Step 2: Convert to fraction form
    12,758.90/19,134.10 = 5,361.98/x
  3. Step 3: Cross multiply
    12,758.90x = 19,134.10 × 5,361.98
  4. Step 4: Simplify right side
    12,758.90x = 102,596,695.95
  5. Step 5: Solve for x
    x = 102,596,695.95/12,758.90
  6. Step 6: Final answer
    x = 8,041.19

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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.