Home / 12,583.74-18,878.32-3,818.42

Finding the Fourth Proportional to 12,583.74, 18,878.32 and 3,818.42

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Solution

The fourth proportional to 12,583.74, 18,878.32 and 3,818.42 is: 5,728.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,583.74 : 18,878.32 = 3,818.42 : x
  2. Step 2: Convert to fraction form
    12,583.74/18,878.32 = 3,818.42/x
  3. Step 3: Cross multiply
    12,583.74x = 18,878.32 × 3,818.42
  4. Step 4: Simplify right side
    12,583.74x = 72,085,354.65
  5. Step 5: Solve for x
    x = 72,085,354.65/12,583.74
  6. Step 6: Final answer
    x = 5,728.45

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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.