Home / 11,211.60-15,457.56-7,668.66

Finding the Fourth Proportional to 11,211.60, 15,457.56 and 7,668.66

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Solution

The fourth proportional to 11,211.60, 15,457.56 and 7,668.66 is: 10,572.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,211.60 : 15,457.56 = 7,668.66 : x
  2. Step 2: Convert to fraction form
    11,211.60/15,457.56 = 7,668.66/x
  3. Step 3: Cross multiply
    11,211.60x = 15,457.56 × 7,668.66
  4. Step 4: Simplify right side
    11,211.60x = 118,538,772.07
  5. Step 5: Solve for x
    x = 118,538,772.07/11,211.60
  6. Step 6: Final answer
    x = 10,572.87

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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.