Home / 13,905.07-20,833.30-11,580.03

Finding the Fourth Proportional to 13,905.07, 20,833.30 and 11,580.03

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Solution

The fourth proportional to 13,905.07, 20,833.30 and 11,580.03 is: 17,349.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.07 : 20,833.30 = 11,580.03 : x
  2. Step 2: Convert to fraction form
    13,905.07/20,833.30 = 11,580.03/x
  3. Step 3: Cross multiply
    13,905.07x = 20,833.30 × 11,580.03
  4. Step 4: Simplify right side
    13,905.07x = 241,250,253.47
  5. Step 5: Solve for x
    x = 241,250,253.47/13,905.07
  6. Step 6: Final answer
    x = 17,349.81

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1.5x scale

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.