Home / 8,911.90-13,364.09-2,672.80

Finding the Fourth Proportional to 8,911.90, 13,364.09 and 2,672.80

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Solution

The fourth proportional to 8,911.90, 13,364.09 and 2,672.80 is: 4,008.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.90 : 13,364.09 = 2,672.80 : x
  2. Step 2: Convert to fraction form
    8,911.90/13,364.09 = 2,672.80/x
  3. Step 3: Cross multiply
    8,911.90x = 13,364.09 × 2,672.80
  4. Step 4: Simplify right side
    8,911.90x = 35,719,539.75
  5. Step 5: Solve for x
    x = 35,719,539.75/8,911.90
  6. Step 6: Final answer
    x = 4,008.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.