Home / 13,559.34-20,365.74-12,976.14

Finding the Fourth Proportional to 13,559.34, 20,365.74 and 12,976.14

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Solution

The fourth proportional to 13,559.34, 20,365.74 and 12,976.14 is: 19,489.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.34 : 20,365.74 = 12,976.14 : x
  2. Step 2: Convert to fraction form
    13,559.34/20,365.74 = 12,976.14/x
  3. Step 3: Cross multiply
    13,559.34x = 20,365.74 × 12,976.14
  4. Step 4: Simplify right side
    13,559.34x = 264,268,693.44
  5. Step 5: Solve for x
    x = 264,268,693.44/13,559.34
  6. Step 6: Final answer
    x = 19,489.79

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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.