Home / 19,243.60-28,866.40-9,391.28

Finding the Fourth Proportional to 19,243.60, 28,866.40 and 9,391.28

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Solution

The fourth proportional to 19,243.60, 28,866.40 and 9,391.28 is: 14,087.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,243.60 : 28,866.40 = 9,391.28 : x
  2. Step 2: Convert to fraction form
    19,243.60/28,866.40 = 9,391.28/x
  3. Step 3: Cross multiply
    19,243.60x = 28,866.40 × 9,391.28
  4. Step 4: Simplify right side
    19,243.60x = 271,092,444.99
  5. Step 5: Solve for x
    x = 271,092,444.99/19,243.60
  6. Step 6: Final answer
    x = 14,087.41

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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.