Home / 13,175.46-19,669.28-12,714.03

Finding the Fourth Proportional to 13,175.46, 19,669.28 and 12,714.03

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Solution

The fourth proportional to 13,175.46, 19,669.28 and 12,714.03 is: 18,980.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,175.46 : 19,669.28 = 12,714.03 : x
  2. Step 2: Convert to fraction form
    13,175.46/19,669.28 = 12,714.03/x
  3. Step 3: Cross multiply
    13,175.46x = 19,669.28 × 12,714.03
  4. Step 4: Simplify right side
    13,175.46x = 250,075,752.43
  5. Step 5: Solve for x
    x = 250,075,752.43/13,175.46
  6. Step 6: Final answer
    x = 18,980.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.