Home / 11,240.60-16,860.90-9,272.30

Finding the Fourth Proportional to 11,240.60, 16,860.90 and 9,272.30

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Solution

The fourth proportional to 11,240.60, 16,860.90 and 9,272.30 is: 13,908.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,240.60 : 16,860.90 = 9,272.30 : x
  2. Step 2: Convert to fraction form
    11,240.60/16,860.90 = 9,272.30/x
  3. Step 3: Cross multiply
    11,240.60x = 16,860.90 × 9,272.30
  4. Step 4: Simplify right side
    11,240.60x = 156,339,323.07
  5. Step 5: Solve for x
    x = 156,339,323.07/11,240.60
  6. Step 6: Final answer
    x = 13,908.45

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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.