Home / 12,647.81-18,973.76-4,750.94

Finding the Fourth Proportional to 12,647.81, 18,973.76 and 4,750.94

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Solution

The fourth proportional to 12,647.81, 18,973.76 and 4,750.94 is: 7,127.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647.81 : 18,973.76 = 4,750.94 : x
  2. Step 2: Convert to fraction form
    12,647.81/18,973.76 = 4,750.94/x
  3. Step 3: Cross multiply
    12,647.81x = 18,973.76 × 4,750.94
  4. Step 4: Simplify right side
    12,647.81x = 90,143,195.33
  5. Step 5: Solve for x
    x = 90,143,195.33/12,647.81
  6. Step 6: Final answer
    x = 7,127.18

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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.