Home / 14,688.54-20,272.68-8,723.43

Finding the Fourth Proportional to 14,688.54, 20,272.68 and 8,723.43

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Solution

The fourth proportional to 14,688.54, 20,272.68 and 8,723.43 is: 12,039.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,688.54 : 20,272.68 = 8,723.43 : x
  2. Step 2: Convert to fraction form
    14,688.54/20,272.68 = 8,723.43/x
  3. Step 3: Cross multiply
    14,688.54x = 20,272.68 × 8,723.43
  4. Step 4: Simplify right side
    14,688.54x = 176,847,304.89
  5. Step 5: Solve for x
    x = 176,847,304.89/14,688.54
  6. Step 6: Final answer
    x = 12,039.82

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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.