Home / 14,543.55-20,072.71-8,574.86

Finding the Fourth Proportional to 14,543.55, 20,072.71 and 8,574.86

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Solution

The fourth proportional to 14,543.55, 20,072.71 and 8,574.86 is: 11,834.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,543.55 : 20,072.71 = 8,574.86 : x
  2. Step 2: Convert to fraction form
    14,543.55/20,072.71 = 8,574.86/x
  3. Step 3: Cross multiply
    14,543.55x = 20,072.71 × 8,574.86
  4. Step 4: Simplify right side
    14,543.55x = 172,120,738.97
  5. Step 5: Solve for x
    x = 172,120,738.97/14,543.55
  6. Step 6: Final answer
    x = 11,834.85

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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.