Home / 19,116.07-28,688.84-9,638.07

Finding the Fourth Proportional to 19,116.07, 28,688.84 and 9,638.07

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Solution

The fourth proportional to 19,116.07, 28,688.84 and 9,638.07 is: 14,464.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116.07 : 28,688.84 = 9,638.07 : x
  2. Step 2: Convert to fraction form
    19,116.07/28,688.84 = 9,638.07/x
  3. Step 3: Cross multiply
    19,116.07x = 28,688.84 × 9,638.07
  4. Step 4: Simplify right side
    19,116.07x = 276,505,072.23
  5. Step 5: Solve for x
    x = 276,505,072.23/19,116.07
  6. Step 6: Final answer
    x = 14,464.54

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1.5x scale

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.