Home / 15,107.85-20,851.82-9,653.43

Finding the Fourth Proportional to 15,107.85, 20,851.82 and 9,653.43

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Solution

The fourth proportional to 15,107.85, 20,851.82 and 9,653.43 is: 13,323.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,107.85 : 20,851.82 = 9,653.43 : x
  2. Step 2: Convert to fraction form
    15,107.85/20,851.82 = 9,653.43/x
  3. Step 3: Cross multiply
    15,107.85x = 20,851.82 × 9,653.43
  4. Step 4: Simplify right side
    15,107.85x = 201,291,536.48
  5. Step 5: Solve for x
    x = 201,291,536.48/15,107.85
  6. Step 6: Final answer
    x = 13,323.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.