Home / 13,081.03-19,621.63-3,220.25

Finding the Fourth Proportional to 13,081.03, 19,621.63 and 3,220.25

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Solution

The fourth proportional to 13,081.03, 19,621.63 and 3,220.25 is: 4,830.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.03 : 19,621.63 = 3,220.25 : x
  2. Step 2: Convert to fraction form
    13,081.03/19,621.63 = 3,220.25/x
  3. Step 3: Cross multiply
    13,081.03x = 19,621.63 × 3,220.25
  4. Step 4: Simplify right side
    13,081.03x = 63,186,441.81
  5. Step 5: Solve for x
    x = 63,186,441.81/13,081.03
  6. Step 6: Final answer
    x = 4,830.39

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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.