Home / 18,795.31-28,188.10-8,914.93

Finding the Fourth Proportional to 18,795.31, 28,188.10 and 8,914.93

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Solution

The fourth proportional to 18,795.31, 28,188.10 and 8,914.93 is: 13,370.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795.31 : 28,188.10 = 8,914.93 : x
  2. Step 2: Convert to fraction form
    18,795.31/28,188.10 = 8,914.93/x
  3. Step 3: Cross multiply
    18,795.31x = 28,188.10 × 8,914.93
  4. Step 4: Simplify right side
    18,795.31x = 251,294,938.33
  5. Step 5: Solve for x
    x = 251,294,938.33/18,795.31
  6. Step 6: Final answer
    x = 13,370.09

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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.