Home / 12,518.49-18,771.73-4,722.33

Finding the Fourth Proportional to 12,518.49, 18,771.73 and 4,722.33

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Solution

The fourth proportional to 12,518.49, 18,771.73 and 4,722.33 is: 7,081.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518.49 : 18,771.73 = 4,722.33 : x
  2. Step 2: Convert to fraction form
    12,518.49/18,771.73 = 4,722.33/x
  3. Step 3: Cross multiply
    12,518.49x = 18,771.73 × 4,722.33
  4. Step 4: Simplify right side
    12,518.49x = 88,646,303.73
  5. Step 5: Solve for x
    x = 88,646,303.73/12,518.49
  6. Step 6: Final answer
    x = 7,081.23

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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.