Home / 13,818.83-20,732.28-4,458.65

Finding the Fourth Proportional to 13,818.83, 20,732.28 and 4,458.65

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Solution

The fourth proportional to 13,818.83, 20,732.28 and 4,458.65 is: 6,689.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.83 : 20,732.28 = 4,458.65 : x
  2. Step 2: Convert to fraction form
    13,818.83/20,732.28 = 4,458.65/x
  3. Step 3: Cross multiply
    13,818.83x = 20,732.28 × 4,458.65
  4. Step 4: Simplify right side
    13,818.83x = 92,437,957.93
  5. Step 5: Solve for x
    x = 92,437,957.93/13,818.83
  6. Step 6: Final answer
    x = 6,689.28

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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.