Home / 13,289.76-19,939.16-8,353.62

Finding the Fourth Proportional to 13,289.76, 19,939.16 and 8,353.62

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Solution

The fourth proportional to 13,289.76, 19,939.16 and 8,353.62 is: 12,533.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.76 : 19,939.16 = 8,353.62 : x
  2. Step 2: Convert to fraction form
    13,289.76/19,939.16 = 8,353.62/x
  3. Step 3: Cross multiply
    13,289.76x = 19,939.16 × 8,353.62
  4. Step 4: Simplify right side
    13,289.76x = 166,564,186.64
  5. Step 5: Solve for x
    x = 166,564,186.64/13,289.76
  6. Step 6: Final answer
    x = 12,533.27

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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.