Home / 11,150.10-16,725.15-9,918.90

Finding the Fourth Proportional to 11,150.10, 16,725.15 and 9,918.90

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Solution

The fourth proportional to 11,150.10, 16,725.15 and 9,918.90 is: 14,878.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,150.10 : 16,725.15 = 9,918.90 : x
  2. Step 2: Convert to fraction form
    11,150.10/16,725.15 = 9,918.90/x
  3. Step 3: Cross multiply
    11,150.10x = 16,725.15 × 9,918.90
  4. Step 4: Simplify right side
    11,150.10x = 165,895,090.34
  5. Step 5: Solve for x
    x = 165,895,090.34/11,150.10
  6. Step 6: Final answer
    x = 14,878.35

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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.