Home / 18,785.23-28,136.31-12,848.04

Finding the Fourth Proportional to 18,785.23, 28,136.31 and 12,848.04

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Solution

The fourth proportional to 18,785.23, 28,136.31 and 12,848.04 is: 19,243.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785.23 : 28,136.31 = 12,848.04 : x
  2. Step 2: Convert to fraction form
    18,785.23/28,136.31 = 12,848.04/x
  3. Step 3: Cross multiply
    18,785.23x = 28,136.31 × 12,848.04
  4. Step 4: Simplify right side
    18,785.23x = 361,496,388.15
  5. Step 5: Solve for x
    x = 361,496,388.15/18,785.23
  6. Step 6: Final answer
    x = 19,243.65

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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.