Home / 14,615.15-20,164.12-8,943.98

Finding the Fourth Proportional to 14,615.15, 20,164.12 and 8,943.98

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Solution

The fourth proportional to 14,615.15, 20,164.12 and 8,943.98 is: 12,339.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,615.15 : 20,164.12 = 8,943.98 : x
  2. Step 2: Convert to fraction form
    14,615.15/20,164.12 = 8,943.98/x
  3. Step 3: Cross multiply
    14,615.15x = 20,164.12 × 8,943.98
  4. Step 4: Simplify right side
    14,615.15x = 180,347,438.43
  5. Step 5: Solve for x
    x = 180,347,438.43/14,615.15
  6. Step 6: Final answer
    x = 12,339.76

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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.