Home / 13,222.92-19,821.63-4,900.68

Finding the Fourth Proportional to 13,222.92, 19,821.63 and 4,900.68

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Solution

The fourth proportional to 13,222.92, 19,821.63 and 4,900.68 is: 7,346.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.92 : 19,821.63 = 4,900.68 : x
  2. Step 2: Convert to fraction form
    13,222.92/19,821.63 = 4,900.68/x
  3. Step 3: Cross multiply
    13,222.92x = 19,821.63 × 4,900.68
  4. Step 4: Simplify right side
    13,222.92x = 97,139,465.71
  5. Step 5: Solve for x
    x = 97,139,465.71/13,222.92
  6. Step 6: Final answer
    x = 7,346.29

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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.