Home / 13,380.39-20,071.80-4,495.23

Finding the Fourth Proportional to 13,380.39, 20,071.80 and 4,495.23

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Solution

The fourth proportional to 13,380.39, 20,071.80 and 4,495.23 is: 6,743.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.39 : 20,071.80 = 4,495.23 : x
  2. Step 2: Convert to fraction form
    13,380.39/20,071.80 = 4,495.23/x
  3. Step 3: Cross multiply
    13,380.39x = 20,071.80 × 4,495.23
  4. Step 4: Simplify right side
    13,380.39x = 90,227,357.51
  5. Step 5: Solve for x
    x = 90,227,357.51/13,380.39
  6. Step 6: Final answer
    x = 6,743.25

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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.