Home / 19,878.51-29,818.17-6,730.86

Finding the Fourth Proportional to 19,878.51, 29,818.17 and 6,730.86

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Solution

The fourth proportional to 19,878.51, 29,818.17 and 6,730.86 is: 10,096.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,878.51 : 29,818.17 = 6,730.86 : x
  2. Step 2: Convert to fraction form
    19,878.51/29,818.17 = 6,730.86/x
  3. Step 3: Cross multiply
    19,878.51x = 29,818.17 × 6,730.86
  4. Step 4: Simplify right side
    19,878.51x = 200,701,927.73
  5. Step 5: Solve for x
    x = 200,701,927.73/19,878.51
  6. Step 6: Final answer
    x = 10,096.43

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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.