Home / 12,137.76-16,746.48-7,100.64

Finding the Fourth Proportional to 12,137.76, 16,746.48 and 7,100.64

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Solution

The fourth proportional to 12,137.76, 16,746.48 and 7,100.64 is: 9,796.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.76 : 16,746.48 = 7,100.64 : x
  2. Step 2: Convert to fraction form
    12,137.76/16,746.48 = 7,100.64/x
  3. Step 3: Cross multiply
    12,137.76x = 16,746.48 × 7,100.64
  4. Step 4: Simplify right side
    12,137.76x = 118,910,725.75
  5. Step 5: Solve for x
    x = 118,910,725.75/12,137.76
  6. Step 6: Final answer
    x = 9,796.76

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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.