Home / 8,289.26-11,416.98-7,170.24

Finding the Fourth Proportional to 8,289.26, 11,416.98 and 7,170.24

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Solution

The fourth proportional to 8,289.26, 11,416.98 and 7,170.24 is: 9,875.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.26 : 11,416.98 = 7,170.24 : x
  2. Step 2: Convert to fraction form
    8,289.26/11,416.98 = 7,170.24/x
  3. Step 3: Cross multiply
    8,289.26x = 11,416.98 × 7,170.24
  4. Step 4: Simplify right side
    8,289.26x = 81,862,486.68
  5. Step 5: Solve for x
    x = 81,862,486.68/8,289.26
  6. Step 6: Final answer
    x = 9,875.73

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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.