Home / 11,861.51-16,370.60-7,386.66

Finding the Fourth Proportional to 11,861.51, 16,370.60 and 7,386.66

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Solution

The fourth proportional to 11,861.51, 16,370.60 and 7,386.66 is: 10,194.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,861.51 : 16,370.60 = 7,386.66 : x
  2. Step 2: Convert to fraction form
    11,861.51/16,370.60 = 7,386.66/x
  3. Step 3: Cross multiply
    11,861.51x = 16,370.60 × 7,386.66
  4. Step 4: Simplify right side
    11,861.51x = 120,924,019.26
  5. Step 5: Solve for x
    x = 120,924,019.26/11,861.51
  6. Step 6: Final answer
    x = 10,194.66

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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.