Home / 9,175.24-13,686.44-8,289.40

Finding the Fourth Proportional to 9,175.24, 13,686.44 and 8,289.40

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Solution

The fourth proportional to 9,175.24, 13,686.44 and 8,289.40 is: 12,365.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,175.24 : 13,686.44 = 8,289.40 : x
  2. Step 2: Convert to fraction form
    9,175.24/13,686.44 = 8,289.40/x
  3. Step 3: Cross multiply
    9,175.24x = 13,686.44 × 8,289.40
  4. Step 4: Simplify right side
    9,175.24x = 113,452,375.74
  5. Step 5: Solve for x
    x = 113,452,375.74/9,175.24
  6. Step 6: Final answer
    x = 12,365.06

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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.