Home / 13,228.34-19,933.53-10,939.81

Finding the Fourth Proportional to 13,228.34, 19,933.53 and 10,939.81

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Solution

The fourth proportional to 13,228.34, 19,933.53 and 10,939.81 is: 16,484.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,228.34 : 19,933.53 = 10,939.81 : x
  2. Step 2: Convert to fraction form
    13,228.34/19,933.53 = 10,939.81/x
  3. Step 3: Cross multiply
    13,228.34x = 19,933.53 × 10,939.81
  4. Step 4: Simplify right side
    13,228.34x = 218,068,981.00
  5. Step 5: Solve for x
    x = 218,068,981.00/13,228.34
  6. Step 6: Final answer
    x = 16,484.98

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.