Home / 18,939.08-28,403.90-7,848.83

Finding the Fourth Proportional to 18,939.08, 28,403.90 and 7,848.83

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Solution

The fourth proportional to 18,939.08, 28,403.90 and 7,848.83 is: 11,771.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,939.08 : 28,403.90 = 7,848.83 : x
  2. Step 2: Convert to fraction form
    18,939.08/28,403.90 = 7,848.83/x
  3. Step 3: Cross multiply
    18,939.08x = 28,403.90 × 7,848.83
  4. Step 4: Simplify right side
    18,939.08x = 222,937,443.64
  5. Step 5: Solve for x
    x = 222,937,443.64/18,939.08
  6. Step 6: Final answer
    x = 11,771.29

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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.