Home / 13,861.76-19,130.56-7,895.36

Finding the Fourth Proportional to 13,861.76, 19,130.56 and 7,895.36

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Solution

The fourth proportional to 13,861.76, 19,130.56 and 7,895.36 is: 10,896.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,861.76 : 19,130.56 = 7,895.36 : x
  2. Step 2: Convert to fraction form
    13,861.76/19,130.56 = 7,895.36/x
  3. Step 3: Cross multiply
    13,861.76x = 19,130.56 × 7,895.36
  4. Step 4: Simplify right side
    13,861.76x = 151,042,658.20
  5. Step 5: Solve for x
    x = 151,042,658.20/13,861.76
  6. Step 6: Final answer
    x = 10,896.36

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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.