Home / 13,985.56-19,299.34-7,696.72

Finding the Fourth Proportional to 13,985.56, 19,299.34 and 7,696.72

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Solution

The fourth proportional to 13,985.56, 19,299.34 and 7,696.72 is: 10,621.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.56 : 19,299.34 = 7,696.72 : x
  2. Step 2: Convert to fraction form
    13,985.56/19,299.34 = 7,696.72/x
  3. Step 3: Cross multiply
    13,985.56x = 19,299.34 × 7,696.72
  4. Step 4: Simplify right side
    13,985.56x = 148,541,616.16
  5. Step 5: Solve for x
    x = 148,541,616.16/13,985.56
  6. Step 6: Final answer
    x = 10,621.07

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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.