Home / 19,189.54-28,764.87-9,320.50

Finding the Fourth Proportional to 19,189.54, 28,764.87 and 9,320.50

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Solution

The fourth proportional to 19,189.54, 28,764.87 and 9,320.50 is: 13,971.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.54 : 28,764.87 = 9,320.50 : x
  2. Step 2: Convert to fraction form
    19,189.54/28,764.87 = 9,320.50/x
  3. Step 3: Cross multiply
    19,189.54x = 28,764.87 × 9,320.50
  4. Step 4: Simplify right side
    19,189.54x = 268,102,970.84
  5. Step 5: Solve for x
    x = 268,102,970.84/19,189.54
  6. Step 6: Final answer
    x = 13,971.31

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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.