Home / 14,745.17-20,345.14-8,775.68

Finding the Fourth Proportional to 14,745.17, 20,345.14 and 8,775.68

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Solution

The fourth proportional to 14,745.17, 20,345.14 and 8,775.68 is: 12,108.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,745.17 : 20,345.14 = 8,775.68 : x
  2. Step 2: Convert to fraction form
    14,745.17/20,345.14 = 8,775.68/x
  3. Step 3: Cross multiply
    14,745.17x = 20,345.14 × 8,775.68
  4. Step 4: Simplify right side
    14,745.17x = 178,542,347.44
  5. Step 5: Solve for x
    x = 178,542,347.44/14,745.17
  6. Step 6: Final answer
    x = 12,108.53

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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.