Home / 13,676.16-18,873.10-7,388.54

Finding the Fourth Proportional to 13,676.16, 18,873.10 and 7,388.54

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Solution

The fourth proportional to 13,676.16, 18,873.10 and 7,388.54 is: 10,196.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.16 : 18,873.10 = 7,388.54 : x
  2. Step 2: Convert to fraction form
    13,676.16/18,873.10 = 7,388.54/x
  3. Step 3: Cross multiply
    13,676.16x = 18,873.10 × 7,388.54
  4. Step 4: Simplify right side
    13,676.16x = 139,444,541.44
  5. Step 5: Solve for x
    x = 139,444,541.44/13,676.16
  6. Step 6: Final answer
    x = 10,196.18

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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.