Home / 13,488.74-20,236.01-5,168.75

Finding the Fourth Proportional to 13,488.74, 20,236.01 and 5,168.75

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Solution

The fourth proportional to 13,488.74, 20,236.01 and 5,168.75 is: 7,754.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.74 : 20,236.01 = 5,168.75 : x
  2. Step 2: Convert to fraction form
    13,488.74/20,236.01 = 5,168.75/x
  3. Step 3: Cross multiply
    13,488.74x = 20,236.01 × 5,168.75
  4. Step 4: Simplify right side
    13,488.74x = 104,594,749.66
  5. Step 5: Solve for x
    x = 104,594,749.66/13,488.74
  6. Step 6: Final answer
    x = 7,754.23

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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.