Home / 18,724.76-28,079.32-7,623.96

Finding the Fourth Proportional to 18,724.76, 28,079.32 and 7,623.96

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Solution

The fourth proportional to 18,724.76, 28,079.32 and 7,623.96 is: 11,432.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,724.76 : 28,079.32 = 7,623.96 : x
  2. Step 2: Convert to fraction form
    18,724.76/28,079.32 = 7,623.96/x
  3. Step 3: Cross multiply
    18,724.76x = 28,079.32 × 7,623.96
  4. Step 4: Simplify right side
    18,724.76x = 214,075,612.51
  5. Step 5: Solve for x
    x = 214,075,612.51/18,724.76
  6. Step 6: Final answer
    x = 11,432.76

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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.