Home / 13,351.07-18,428.33-8,817.06

Finding the Fourth Proportional to 13,351.07, 18,428.33 and 8,817.06

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Solution

The fourth proportional to 13,351.07, 18,428.33 and 8,817.06 is: 12,170.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.07 : 18,428.33 = 8,817.06 : x
  2. Step 2: Convert to fraction form
    13,351.07/18,428.33 = 8,817.06/x
  3. Step 3: Cross multiply
    13,351.07x = 18,428.33 × 8,817.06
  4. Step 4: Simplify right side
    13,351.07x = 162,483,647.22
  5. Step 5: Solve for x
    x = 162,483,647.22/13,351.07
  6. Step 6: Final answer
    x = 12,170.09

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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.