Home / 12,007.12-18,013.34-4,611.58

Finding the Fourth Proportional to 12,007.12, 18,013.34 and 4,611.58

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Solution

The fourth proportional to 12,007.12, 18,013.34 and 4,611.58 is: 6,918.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,007.12 : 18,013.34 = 4,611.58 : x
  2. Step 2: Convert to fraction form
    12,007.12/18,013.34 = 4,611.58/x
  3. Step 3: Cross multiply
    12,007.12x = 18,013.34 × 4,611.58
  4. Step 4: Simplify right side
    12,007.12x = 83,069,845.35
  5. Step 5: Solve for x
    x = 83,069,845.35/12,007.12
  6. Step 6: Final answer
    x = 6,918.39

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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.