Home / 14,309.55-21,462.03-3,918.87

Finding the Fourth Proportional to 14,309.55, 21,462.03 and 3,918.87

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Solution

The fourth proportional to 14,309.55, 21,462.03 and 3,918.87 is: 5,877.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,309.55 : 21,462.03 = 3,918.87 : x
  2. Step 2: Convert to fraction form
    14,309.55/21,462.03 = 3,918.87/x
  3. Step 3: Cross multiply
    14,309.55x = 21,462.03 × 3,918.87
  4. Step 4: Simplify right side
    14,309.55x = 84,106,905.51
  5. Step 5: Solve for x
    x = 84,106,905.51/14,309.55
  6. Step 6: Final answer
    x = 5,877.68

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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.