Home / 14,670.75-20,245.28-8,382.72

Finding the Fourth Proportional to 14,670.75, 20,245.28 and 8,382.72

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Solution

The fourth proportional to 14,670.75, 20,245.28 and 8,382.72 is: 11,567.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,670.75 : 20,245.28 = 8,382.72 : x
  2. Step 2: Convert to fraction form
    14,670.75/20,245.28 = 8,382.72/x
  3. Step 3: Cross multiply
    14,670.75x = 20,245.28 × 8,382.72
  4. Step 4: Simplify right side
    14,670.75x = 169,710,513.56
  5. Step 5: Solve for x
    x = 169,710,513.56/14,670.75
  6. Step 6: Final answer
    x = 11,567.95

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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.