Home / 8,389.94-12,567.12-5,745.04

Finding the Fourth Proportional to 8,389.94, 12,567.12 and 5,745.04

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Solution

The fourth proportional to 8,389.94, 12,567.12 and 5,745.04 is: 8,605.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.94 : 12,567.12 = 5,745.04 : x
  2. Step 2: Convert to fraction form
    8,389.94/12,567.12 = 5,745.04/x
  3. Step 3: Cross multiply
    8,389.94x = 12,567.12 × 5,745.04
  4. Step 4: Simplify right side
    8,389.94x = 72,198,607.08
  5. Step 5: Solve for x
    x = 72,198,607.08/8,389.94
  6. Step 6: Final answer
    x = 8,605.38

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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.