Home / 14,690.37-20,265.19-9,379.60

Finding the Fourth Proportional to 14,690.37, 20,265.19 and 9,379.60

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Solution

The fourth proportional to 14,690.37, 20,265.19 and 9,379.60 is: 12,939.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,690.37 : 20,265.19 = 9,379.60 : x
  2. Step 2: Convert to fraction form
    14,690.37/20,265.19 = 9,379.60/x
  3. Step 3: Cross multiply
    14,690.37x = 20,265.19 × 9,379.60
  4. Step 4: Simplify right side
    14,690.37x = 190,079,376.12
  5. Step 5: Solve for x
    x = 190,079,376.12/14,690.37
  6. Step 6: Final answer
    x = 12,939.05

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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.