Home / 11,038.80-16,558.20-10,131.60

Finding the Fourth Proportional to 11,038.80, 16,558.20 and 10,131.60

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Solution

The fourth proportional to 11,038.80, 16,558.20 and 10,131.60 is: 15,197.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,038.80 : 16,558.20 = 10,131.60 : x
  2. Step 2: Convert to fraction form
    11,038.80/16,558.20 = 10,131.60/x
  3. Step 3: Cross multiply
    11,038.80x = 16,558.20 × 10,131.60
  4. Step 4: Simplify right side
    11,038.80x = 167,761,059.12
  5. Step 5: Solve for x
    x = 167,761,059.12/11,038.80
  6. Step 6: Final answer
    x = 15,197.40

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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.