Home / 13,368.44-18,445.32-9,128.34

Finding the Fourth Proportional to 13,368.44, 18,445.32 and 9,128.34

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Solution

The fourth proportional to 13,368.44, 18,445.32 and 9,128.34 is: 12,594.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,368.44 : 18,445.32 = 9,128.34 : x
  2. Step 2: Convert to fraction form
    13,368.44/18,445.32 = 9,128.34/x
  3. Step 3: Cross multiply
    13,368.44x = 18,445.32 × 9,128.34
  4. Step 4: Simplify right side
    13,368.44x = 168,375,152.37
  5. Step 5: Solve for x
    x = 168,375,152.37/13,368.44
  6. Step 6: Final answer
    x = 12,594.97

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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.