Home / 11,211.36-15,462.72-7,668.96

Finding the Fourth Proportional to 11,211.36, 15,462.72 and 7,668.96

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Solution

The fourth proportional to 11,211.36, 15,462.72 and 7,668.96 is: 10,577.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,211.36 : 15,462.72 = 7,668.96 : x
  2. Step 2: Convert to fraction form
    11,211.36/15,462.72 = 7,668.96/x
  3. Step 3: Cross multiply
    11,211.36x = 15,462.72 × 7,668.96
  4. Step 4: Simplify right side
    11,211.36x = 118,582,981.17
  5. Step 5: Solve for x
    x = 118,582,981.17/11,211.36
  6. Step 6: Final answer
    x = 10,577.04

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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.