Home / 12,235.99-18,349.29-5,211.55

Finding the Fourth Proportional to 12,235.99, 18,349.29 and 5,211.55

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Solution

The fourth proportional to 12,235.99, 18,349.29 and 5,211.55 is: 7,815.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.99 : 18,349.29 = 5,211.55 : x
  2. Step 2: Convert to fraction form
    12,235.99/18,349.29 = 5,211.55/x
  3. Step 3: Cross multiply
    12,235.99x = 18,349.29 × 5,211.55
  4. Step 4: Simplify right side
    12,235.99x = 95,628,242.30
  5. Step 5: Solve for x
    x = 95,628,242.30/12,235.99
  6. Step 6: Final answer
    x = 7,815.33

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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.