Home / 19,004.88-28,513.56-9,142.86

Finding the Fourth Proportional to 19,004.88, 28,513.56 and 9,142.86

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Solution

The fourth proportional to 19,004.88, 28,513.56 and 9,142.86 is: 13,717.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,004.88 : 28,513.56 = 9,142.86 : x
  2. Step 2: Convert to fraction form
    19,004.88/28,513.56 = 9,142.86/x
  3. Step 3: Cross multiply
    19,004.88x = 28,513.56 × 9,142.86
  4. Step 4: Simplify right side
    19,004.88x = 260,695,487.18
  5. Step 5: Solve for x
    x = 260,695,487.18/19,004.88
  6. Step 6: Final answer
    x = 13,717.29

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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.