Home / 19,114.96-28,688.84-9,132.02

Finding the Fourth Proportional to 19,114.96, 28,688.84 and 9,132.02

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Solution

The fourth proportional to 19,114.96, 28,688.84 and 9,132.02 is: 13,705.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,114.96 : 28,688.84 = 9,132.02 : x
  2. Step 2: Convert to fraction form
    19,114.96/28,688.84 = 9,132.02/x
  3. Step 3: Cross multiply
    19,114.96x = 28,688.84 × 9,132.02
  4. Step 4: Simplify right side
    19,114.96x = 261,987,060.66
  5. Step 5: Solve for x
    x = 261,987,060.66/19,114.96
  6. Step 6: Final answer
    x = 13,705.86

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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.