Home / 14,765.86-20,378.61-8,393.41

Finding the Fourth Proportional to 14,765.86, 20,378.61 and 8,393.41

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Solution

The fourth proportional to 14,765.86, 20,378.61 and 8,393.41 is: 11,583.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,765.86 : 20,378.61 = 8,393.41 : x
  2. Step 2: Convert to fraction form
    14,765.86/20,378.61 = 8,393.41/x
  3. Step 3: Cross multiply
    14,765.86x = 20,378.61 × 8,393.41
  4. Step 4: Simplify right side
    14,765.86x = 171,045,963.41
  5. Step 5: Solve for x
    x = 171,045,963.41/14,765.86
  6. Step 6: Final answer
    x = 11,583.88

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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.