Home / 12,729.32-19,093.96-7,180.14

Finding the Fourth Proportional to 12,729.32, 19,093.96 and 7,180.14

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Solution

The fourth proportional to 12,729.32, 19,093.96 and 7,180.14 is: 10,770.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,729.32 : 19,093.96 = 7,180.14 : x
  2. Step 2: Convert to fraction form
    12,729.32/19,093.96 = 7,180.14/x
  3. Step 3: Cross multiply
    12,729.32x = 19,093.96 × 7,180.14
  4. Step 4: Simplify right side
    12,729.32x = 137,097,386.53
  5. Step 5: Solve for x
    x = 137,097,386.53/12,729.32
  6. Step 6: Final answer
    x = 10,770.21

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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.