Home / 11,120.40-16,680.60-6,746.40

Finding the Fourth Proportional to 11,120.40, 16,680.60 and 6,746.40

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Solution

The fourth proportional to 11,120.40, 16,680.60 and 6,746.40 is: 10,119.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.40 : 16,680.60 = 6,746.40 : x
  2. Step 2: Convert to fraction form
    11,120.40/16,680.60 = 6,746.40/x
  3. Step 3: Cross multiply
    11,120.40x = 16,680.60 × 6,746.40
  4. Step 4: Simplify right side
    11,120.40x = 112,533,999.84
  5. Step 5: Solve for x
    x = 112,533,999.84/11,120.40
  6. Step 6: Final answer
    x = 10,119.60

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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.