Home / 18,289.44-25,239.53-9,905.94

Finding the Fourth Proportional to 18,289.44, 25,239.53 and 9,905.94

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Solution

The fourth proportional to 18,289.44, 25,239.53 and 9,905.94 is: 13,670.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,289.44 : 25,239.53 = 9,905.94 : x
  2. Step 2: Convert to fraction form
    18,289.44/25,239.53 = 9,905.94/x
  3. Step 3: Cross multiply
    18,289.44x = 25,239.53 × 9,905.94
  4. Step 4: Simplify right side
    18,289.44x = 250,021,294.57
  5. Step 5: Solve for x
    x = 250,021,294.57/18,289.44
  6. Step 6: Final answer
    x = 13,670.25

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1.5x scale

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.