Home / 13,154.76-19,735.34-4,390.34

Finding the Fourth Proportional to 13,154.76, 19,735.34 and 4,390.34

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Solution

The fourth proportional to 13,154.76, 19,735.34 and 4,390.34 is: 6,586.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,154.76 : 19,735.34 = 4,390.34 : x
  2. Step 2: Convert to fraction form
    13,154.76/19,735.34 = 4,390.34/x
  3. Step 3: Cross multiply
    13,154.76x = 19,735.34 × 4,390.34
  4. Step 4: Simplify right side
    13,154.76x = 86,644,731.99
  5. Step 5: Solve for x
    x = 86,644,731.99/13,154.76
  6. Step 6: Final answer
    x = 6,586.57

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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.