Home / 14,435.44-19,920.90-8,148.22

Finding the Fourth Proportional to 14,435.44, 19,920.90 and 8,148.22

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Solution

The fourth proportional to 14,435.44, 19,920.90 and 8,148.22 is: 11,244.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,435.44 : 19,920.90 = 8,148.22 : x
  2. Step 2: Convert to fraction form
    14,435.44/19,920.90 = 8,148.22/x
  3. Step 3: Cross multiply
    14,435.44x = 19,920.90 × 8,148.22
  4. Step 4: Simplify right side
    14,435.44x = 162,319,856.55
  5. Step 5: Solve for x
    x = 162,319,856.55/14,435.44
  6. Step 6: Final answer
    x = 11,244.54

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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.