Home / 13,395.72-18,495.67-8,929.99

Finding the Fourth Proportional to 13,395.72, 18,495.67 and 8,929.99

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Solution

The fourth proportional to 13,395.72, 18,495.67 and 8,929.99 is: 12,329.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.72 : 18,495.67 = 8,929.99 : x
  2. Step 2: Convert to fraction form
    13,395.72/18,495.67 = 8,929.99/x
  3. Step 3: Cross multiply
    13,395.72x = 18,495.67 × 8,929.99
  4. Step 4: Simplify right side
    13,395.72x = 165,166,148.14
  5. Step 5: Solve for x
    x = 165,166,148.14/13,395.72
  6. Step 6: Final answer
    x = 12,329.77

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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.