Home / 13,558.73-20,338.47-3,698.19

Finding the Fourth Proportional to 13,558.73, 20,338.47 and 3,698.19

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Solution

The fourth proportional to 13,558.73, 20,338.47 and 3,698.19 is: 5,547.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.73 : 20,338.47 = 3,698.19 : x
  2. Step 2: Convert to fraction form
    13,558.73/20,338.47 = 3,698.19/x
  3. Step 3: Cross multiply
    13,558.73x = 20,338.47 × 3,698.19
  4. Step 4: Simplify right side
    13,558.73x = 75,215,526.37
  5. Step 5: Solve for x
    x = 75,215,526.37/13,558.73
  6. Step 6: Final answer
    x = 5,547.39

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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.