Home / 18,795.12-28,191.80-7,699.08

Finding the Fourth Proportional to 18,795.12, 28,191.80 and 7,699.08

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Solution

The fourth proportional to 18,795.12, 28,191.80 and 7,699.08 is: 11,548.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795.12 : 28,191.80 = 7,699.08 : x
  2. Step 2: Convert to fraction form
    18,795.12/28,191.80 = 7,699.08/x
  3. Step 3: Cross multiply
    18,795.12x = 28,191.80 × 7,699.08
  4. Step 4: Simplify right side
    18,795.12x = 217,050,923.54
  5. Step 5: Solve for x
    x = 217,050,923.54/18,795.12
  6. Step 6: Final answer
    x = 11,548.26

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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.