Home / 12,756.93-19,127.79-4,860.03

Finding the Fourth Proportional to 12,756.93, 19,127.79 and 4,860.03

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Solution

The fourth proportional to 12,756.93, 19,127.79 and 4,860.03 is: 7,287.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756.93 : 19,127.79 = 4,860.03 : x
  2. Step 2: Convert to fraction form
    12,756.93/19,127.79 = 4,860.03/x
  3. Step 3: Cross multiply
    12,756.93x = 19,127.79 × 4,860.03
  4. Step 4: Simplify right side
    12,756.93x = 92,961,633.23
  5. Step 5: Solve for x
    x = 92,961,633.23/12,756.93
  6. Step 6: Final answer
    x = 7,287.15

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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.