Home / 11,911.56-16,430.45-7,668.17

Finding the Fourth Proportional to 11,911.56, 16,430.45 and 7,668.17

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Solution

The fourth proportional to 11,911.56, 16,430.45 and 7,668.17 is: 10,577.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.56 : 16,430.45 = 7,668.17 : x
  2. Step 2: Convert to fraction form
    11,911.56/16,430.45 = 7,668.17/x
  3. Step 3: Cross multiply
    11,911.56x = 16,430.45 × 7,668.17
  4. Step 4: Simplify right side
    11,911.56x = 125,991,363.28
  5. Step 5: Solve for x
    x = 125,991,363.28/11,911.56
  6. Step 6: Final answer
    x = 10,577.23

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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.