Home / 11,898.81-17,865.70-11,688.84

Finding the Fourth Proportional to 11,898.81, 17,865.70 and 11,688.84

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Solution

The fourth proportional to 11,898.81, 17,865.70 and 11,688.84 is: 17,550.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,898.81 : 17,865.70 = 11,688.84 : x
  2. Step 2: Convert to fraction form
    11,898.81/17,865.70 = 11,688.84/x
  3. Step 3: Cross multiply
    11,898.81x = 17,865.70 × 11,688.84
  4. Step 4: Simplify right side
    11,898.81x = 208,829,279.57
  5. Step 5: Solve for x
    x = 208,829,279.57/11,898.81
  6. Step 6: Final answer
    x = 17,550.43

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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.