Home / 8,985.23-13,478.39-2,745.68

Finding the Fourth Proportional to 8,985.23, 13,478.39 and 2,745.68

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Solution

The fourth proportional to 8,985.23, 13,478.39 and 2,745.68 is: 4,118.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.23 : 13,478.39 = 2,745.68 : x
  2. Step 2: Convert to fraction form
    8,985.23/13,478.39 = 2,745.68/x
  3. Step 3: Cross multiply
    8,985.23x = 13,478.39 × 2,745.68
  4. Step 4: Simplify right side
    8,985.23x = 37,007,345.86
  5. Step 5: Solve for x
    x = 37,007,345.86/8,985.23
  6. Step 6: Final answer
    x = 4,118.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.