Home / 12,137.23-18,208.28-4,345.03

Finding the Fourth Proportional to 12,137.23, 18,208.28 and 4,345.03

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Solution

The fourth proportional to 12,137.23, 18,208.28 and 4,345.03 is: 6,518.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.23 : 18,208.28 = 4,345.03 : x
  2. Step 2: Convert to fraction form
    12,137.23/18,208.28 = 4,345.03/x
  3. Step 3: Cross multiply
    12,137.23x = 18,208.28 × 4,345.03
  4. Step 4: Simplify right side
    12,137.23x = 79,115,522.85
  5. Step 5: Solve for x
    x = 79,115,522.85/12,137.23
  6. Step 6: Final answer
    x = 6,518.42

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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.