Home / 19,150.12-28,690.62-9,888.04

Finding the Fourth Proportional to 19,150.12, 28,690.62 and 9,888.04

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Solution

The fourth proportional to 19,150.12, 28,690.62 and 9,888.04 is: 14,814.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,150.12 : 28,690.62 = 9,888.04 : x
  2. Step 2: Convert to fraction form
    19,150.12/28,690.62 = 9,888.04/x
  3. Step 3: Cross multiply
    19,150.12x = 28,690.62 × 9,888.04
  4. Step 4: Simplify right side
    19,150.12x = 283,693,998.18
  5. Step 5: Solve for x
    x = 283,693,998.18/19,150.12
  6. Step 6: Final answer
    x = 14,814.22

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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.