Home / 13,325.50-18,389.19-7,736.50

Finding the Fourth Proportional to 13,325.50, 18,389.19 and 7,736.50

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Solution

The fourth proportional to 13,325.50, 18,389.19 and 7,736.50 is: 10,676.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.50 : 18,389.19 = 7,736.50 : x
  2. Step 2: Convert to fraction form
    13,325.50/18,389.19 = 7,736.50/x
  3. Step 3: Cross multiply
    13,325.50x = 18,389.19 × 7,736.50
  4. Step 4: Simplify right side
    13,325.50x = 142,267,968.44
  5. Step 5: Solve for x
    x = 142,267,968.44/13,325.50
  6. Step 6: Final answer
    x = 10,676.37

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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.