Home / 13,818.41-20,730.57-4,458.96

Finding the Fourth Proportional to 13,818.41, 20,730.57 and 4,458.96

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Solution

The fourth proportional to 13,818.41, 20,730.57 and 4,458.96 is: 6,689.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.41 : 20,730.57 = 4,458.96 : x
  2. Step 2: Convert to fraction form
    13,818.41/20,730.57 = 4,458.96/x
  3. Step 3: Cross multiply
    13,818.41x = 20,730.57 × 4,458.96
  4. Step 4: Simplify right side
    13,818.41x = 92,436,834.23
  5. Step 5: Solve for x
    x = 92,436,834.23/13,818.41
  6. Step 6: Final answer
    x = 6,689.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.