Home / 13,128.02-19,672.57-10,804.53

Finding the Fourth Proportional to 13,128.02, 19,672.57 and 10,804.53

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Solution

The fourth proportional to 13,128.02, 19,672.57 and 10,804.53 is: 16,190.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128.02 : 19,672.57 = 10,804.53 : x
  2. Step 2: Convert to fraction form
    13,128.02/19,672.57 = 10,804.53/x
  3. Step 3: Cross multiply
    13,128.02x = 19,672.57 × 10,804.53
  4. Step 4: Simplify right side
    13,128.02x = 212,552,872.74
  5. Step 5: Solve for x
    x = 212,552,872.74/13,128.02
  6. Step 6: Final answer
    x = 16,190.78

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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.