Home / 12,146.34-18,219.51-3,827.64

Finding the Fourth Proportional to 12,146.34, 18,219.51 and 3,827.64

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Solution

The fourth proportional to 12,146.34, 18,219.51 and 3,827.64 is: 5,741.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,146.34 : 18,219.51 = 3,827.64 : x
  2. Step 2: Convert to fraction form
    12,146.34/18,219.51 = 3,827.64/x
  3. Step 3: Cross multiply
    12,146.34x = 18,219.51 × 3,827.64
  4. Step 4: Simplify right side
    12,146.34x = 69,737,725.26
  5. Step 5: Solve for x
    x = 69,737,725.26/12,146.34
  6. Step 6: Final answer
    x = 5,741.46

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1.5x scale

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.