Home / 11,070.96-15,279.60-6,880.56

Finding the Fourth Proportional to 11,070.96, 15,279.60 and 6,880.56

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Solution

The fourth proportional to 11,070.96, 15,279.60 and 6,880.56 is: 9,496.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,070.96 : 15,279.60 = 6,880.56 : x
  2. Step 2: Convert to fraction form
    11,070.96/15,279.60 = 6,880.56/x
  3. Step 3: Cross multiply
    11,070.96x = 15,279.60 × 6,880.56
  4. Step 4: Simplify right side
    11,070.96x = 105,132,204.58
  5. Step 5: Solve for x
    x = 105,132,204.58/11,070.96
  6. Step 6: Final answer
    x = 9,496.21

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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.