Home / 12,020.94-16,589.67-6,715.77

Finding the Fourth Proportional to 12,020.94, 16,589.67 and 6,715.77

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Solution

The fourth proportional to 12,020.94, 16,589.67 and 6,715.77 is: 9,268.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020.94 : 16,589.67 = 6,715.77 : x
  2. Step 2: Convert to fraction form
    12,020.94/16,589.67 = 6,715.77/x
  3. Step 3: Cross multiply
    12,020.94x = 16,589.67 × 6,715.77
  4. Step 4: Simplify right side
    12,020.94x = 111,412,408.10
  5. Step 5: Solve for x
    x = 111,412,408.10/12,020.94
  6. Step 6: Final answer
    x = 9,268.19

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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.