Home / 13,450.35-18,564.59-8,975.81

Finding the Fourth Proportional to 13,450.35, 18,564.59 and 8,975.81

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Solution

The fourth proportional to 13,450.35, 18,564.59 and 8,975.81 is: 12,388.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.35 : 18,564.59 = 8,975.81 : x
  2. Step 2: Convert to fraction form
    13,450.35/18,564.59 = 8,975.81/x
  3. Step 3: Cross multiply
    13,450.35x = 18,564.59 × 8,975.81
  4. Step 4: Simplify right side
    13,450.35x = 166,632,301.42
  5. Step 5: Solve for x
    x = 166,632,301.42/13,450.35
  6. Step 6: Final answer
    x = 12,388.69

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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.