Home / 14,553.81-21,816.54-6,661.44

Finding the Fourth Proportional to 14,553.81, 21,816.54 and 6,661.44

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Solution

The fourth proportional to 14,553.81, 21,816.54 and 6,661.44 is: 9,985.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,553.81 : 21,816.54 = 6,661.44 : x
  2. Step 2: Convert to fraction form
    14,553.81/21,816.54 = 6,661.44/x
  3. Step 3: Cross multiply
    14,553.81x = 21,816.54 × 6,661.44
  4. Step 4: Simplify right side
    14,553.81x = 145,329,572.22
  5. Step 5: Solve for x
    x = 145,329,572.22/14,553.81
  6. Step 6: Final answer
    x = 9,985.67

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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.