Home / 12,072.42-18,109.44-4,676.40

Finding the Fourth Proportional to 12,072.42, 18,109.44 and 4,676.40

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Solution

The fourth proportional to 12,072.42, 18,109.44 and 4,676.40 is: 7,014.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.42 : 18,109.44 = 4,676.40 : x
  2. Step 2: Convert to fraction form
    12,072.42/18,109.44 = 4,676.40/x
  3. Step 3: Cross multiply
    12,072.42x = 18,109.44 × 4,676.40
  4. Step 4: Simplify right side
    12,072.42x = 84,686,985.22
  5. Step 5: Solve for x
    x = 84,686,985.22/12,072.42
  6. Step 6: Final answer
    x = 7,014.91

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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.