Home / 13,829.52-19,085.16-7,861.44

Finding the Fourth Proportional to 13,829.52, 19,085.16 and 7,861.44

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Solution

The fourth proportional to 13,829.52, 19,085.16 and 7,861.44 is: 10,849.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.52 : 19,085.16 = 7,861.44 : x
  2. Step 2: Convert to fraction form
    13,829.52/19,085.16 = 7,861.44/x
  3. Step 3: Cross multiply
    13,829.52x = 19,085.16 × 7,861.44
  4. Step 4: Simplify right side
    13,829.52x = 150,036,840.23
  5. Step 5: Solve for x
    x = 150,036,840.23/13,829.52
  6. Step 6: Final answer
    x = 10,849.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.