Home / 19,288.12-28,922.44-9,412.60

Finding the Fourth Proportional to 19,288.12, 28,922.44 and 9,412.60

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Solution

The fourth proportional to 19,288.12, 28,922.44 and 9,412.60 is: 14,114.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,288.12 : 28,922.44 = 9,412.60 : x
  2. Step 2: Convert to fraction form
    19,288.12/28,922.44 = 9,412.60/x
  3. Step 3: Cross multiply
    19,288.12x = 28,922.44 × 9,412.60
  4. Step 4: Simplify right side
    19,288.12x = 272,235,358.74
  5. Step 5: Solve for x
    x = 272,235,358.74/19,288.12
  6. Step 6: Final answer
    x = 14,114.15

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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.