Home / 13,425.03-18,523.73-8,118.81

Finding the Fourth Proportional to 13,425.03, 18,523.73 and 8,118.81

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Solution

The fourth proportional to 13,425.03, 18,523.73 and 8,118.81 is: 11,202.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.03 : 18,523.73 = 8,118.81 : x
  2. Step 2: Convert to fraction form
    13,425.03/18,523.73 = 8,118.81/x
  3. Step 3: Cross multiply
    13,425.03x = 18,523.73 × 8,118.81
  4. Step 4: Simplify right side
    13,425.03x = 150,390,603.77
  5. Step 5: Solve for x
    x = 150,390,603.77/13,425.03
  6. Step 6: Final answer
    x = 11,202.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.