Home / 12,941.58-19,412.80-3,580.81

Finding the Fourth Proportional to 12,941.58, 19,412.80 and 3,580.81

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Solution

The fourth proportional to 12,941.58, 19,412.80 and 3,580.81 is: 5,371.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,941.58 : 19,412.80 = 3,580.81 : x
  2. Step 2: Convert to fraction form
    12,941.58/19,412.80 = 3,580.81/x
  3. Step 3: Cross multiply
    12,941.58x = 19,412.80 × 3,580.81
  4. Step 4: Simplify right side
    12,941.58x = 69,513,623.17
  5. Step 5: Solve for x
    x = 69,513,623.17/12,941.58
  6. Step 6: Final answer
    x = 5,371.34

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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.