Home / 11,071.56-15,278.94-6,355.80

Finding the Fourth Proportional to 11,071.56, 15,278.94 and 6,355.80

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Solution

The fourth proportional to 11,071.56, 15,278.94 and 6,355.80 is: 8,771.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,071.56 : 15,278.94 = 6,355.80 : x
  2. Step 2: Convert to fraction form
    11,071.56/15,278.94 = 6,355.80/x
  3. Step 3: Cross multiply
    11,071.56x = 15,278.94 × 6,355.80
  4. Step 4: Simplify right side
    11,071.56x = 97,109,886.85
  5. Step 5: Solve for x
    x = 97,109,886.85/11,071.56
  6. Step 6: Final answer
    x = 8,771.11

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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.