Home / 12,240.61-18,361.08-3,475.51

Finding the Fourth Proportional to 12,240.61, 18,361.08 and 3,475.51

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Solution

The fourth proportional to 12,240.61, 18,361.08 and 3,475.51 is: 5,213.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.61 : 18,361.08 = 3,475.51 : x
  2. Step 2: Convert to fraction form
    12,240.61/18,361.08 = 3,475.51/x
  3. Step 3: Cross multiply
    12,240.61x = 18,361.08 × 3,475.51
  4. Step 4: Simplify right side
    12,240.61x = 63,814,071.25
  5. Step 5: Solve for x
    x = 63,814,071.25/12,240.61
  6. Step 6: Final answer
    x = 5,213.31

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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.