Home / 13,034.15-19,548.21-7,770.65

Finding the Fourth Proportional to 13,034.15, 19,548.21 and 7,770.65

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Solution

The fourth proportional to 13,034.15, 19,548.21 and 7,770.65 is: 11,654.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,034.15 : 19,548.21 = 7,770.65 : x
  2. Step 2: Convert to fraction form
    13,034.15/19,548.21 = 7,770.65/x
  3. Step 3: Cross multiply
    13,034.15x = 19,548.21 × 7,770.65
  4. Step 4: Simplify right side
    13,034.15x = 151,902,200.30
  5. Step 5: Solve for x
    x = 151,902,200.30/13,034.15
  6. Step 6: Final answer
    x = 11,654.17

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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.