Home / 14,745.75-20,345.63-8,372.46

Finding the Fourth Proportional to 14,745.75, 20,345.63 and 8,372.46

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Solution

The fourth proportional to 14,745.75, 20,345.63 and 8,372.46 is: 11,552.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,745.75 : 20,345.63 = 8,372.46 : x
  2. Step 2: Convert to fraction form
    14,745.75/20,345.63 = 8,372.46/x
  3. Step 3: Cross multiply
    14,745.75x = 20,345.63 × 8,372.46
  4. Step 4: Simplify right side
    14,745.75x = 170,343,054.88
  5. Step 5: Solve for x
    x = 170,343,054.88/14,745.75
  6. Step 6: Final answer
    x = 11,552.01

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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.