Home / 19,679.56-29,501.62-7,190.84

Finding the Fourth Proportional to 19,679.56, 29,501.62 and 7,190.84

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Solution

The fourth proportional to 19,679.56, 29,501.62 and 7,190.84 is: 10,779.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.56 : 29,501.62 = 7,190.84 : x
  2. Step 2: Convert to fraction form
    19,679.56/29,501.62 = 7,190.84/x
  3. Step 3: Cross multiply
    19,679.56x = 29,501.62 × 7,190.84
  4. Step 4: Simplify right side
    19,679.56x = 212,141,484.94
  5. Step 5: Solve for x
    x = 212,141,484.94/19,679.56
  6. Step 6: Final answer
    x = 10,779.79

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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.