Home / 13,071.55-19,608.39-7,842.30

Finding the Fourth Proportional to 13,071.55, 19,608.39 and 7,842.30

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Solution

The fourth proportional to 13,071.55, 19,608.39 and 7,842.30 is: 11,764.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,071.55 : 19,608.39 = 7,842.30 : x
  2. Step 2: Convert to fraction form
    13,071.55/19,608.39 = 7,842.30/x
  3. Step 3: Cross multiply
    13,071.55x = 19,608.39 × 7,842.30
  4. Step 4: Simplify right side
    13,071.55x = 153,774,876.90
  5. Step 5: Solve for x
    x = 153,774,876.90/13,071.55
  6. Step 6: Final answer
    x = 11,764.09

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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.