Home / 14,745.90-20,349.36-8,031.54

Finding the Fourth Proportional to 14,745.90, 20,349.36 and 8,031.54

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Solution

The fourth proportional to 14,745.90, 20,349.36 and 8,031.54 is: 11,083.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,745.90 : 20,349.36 = 8,031.54 : x
  2. Step 2: Convert to fraction form
    14,745.90/20,349.36 = 8,031.54/x
  3. Step 3: Cross multiply
    14,745.90x = 20,349.36 × 8,031.54
  4. Step 4: Simplify right side
    14,745.90x = 163,436,698.81
  5. Step 5: Solve for x
    x = 163,436,698.81/14,745.90
  6. Step 6: Final answer
    x = 11,083.54

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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.