Home / 13,945.52-20,834.02-8,974.64

Finding the Fourth Proportional to 13,945.52, 20,834.02 and 8,974.64

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Solution

The fourth proportional to 13,945.52, 20,834.02 and 8,974.64 is: 13,407.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.52 : 20,834.02 = 8,974.64 : x
  2. Step 2: Convert to fraction form
    13,945.52/20,834.02 = 8,974.64/x
  3. Step 3: Cross multiply
    13,945.52x = 20,834.02 × 8,974.64
  4. Step 4: Simplify right side
    13,945.52x = 186,977,829.25
  5. Step 5: Solve for x
    x = 186,977,829.25/13,945.52
  6. Step 6: Final answer
    x = 13,407.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.