Home / 13,599.99-20,473.56-9,731.43

Finding the Fourth Proportional to 13,599.99, 20,473.56 and 9,731.43

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Solution

The fourth proportional to 13,599.99, 20,473.56 and 9,731.43 is: 14,649.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.99 : 20,473.56 = 9,731.43 : x
  2. Step 2: Convert to fraction form
    13,599.99/20,473.56 = 9,731.43/x
  3. Step 3: Cross multiply
    13,599.99x = 20,473.56 × 9,731.43
  4. Step 4: Simplify right side
    13,599.99x = 199,237,015.99
  5. Step 5: Solve for x
    x = 199,237,015.99/13,599.99
  6. Step 6: Final answer
    x = 14,649.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.