Home / 10,091.45-13,926-5,615.19

Finding the Fourth Proportional to 10,091.45, 13,926 and 5,615.19

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Solution

The fourth proportional to 10,091.45, 13,926 and 5,615.19 is: 7,748.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,091.45 : 13,926 = 5,615.19 : x
  2. Step 2: Convert to fraction form
    10,091.45/13,926 = 5,615.19/x
  3. Step 3: Cross multiply
    10,091.45x = 13,926 × 5,615.19
  4. Step 4: Simplify right side
    10,091.45x = 78,197,135.94
  5. Step 5: Solve for x
    x = 78,197,135.94/10,091.45
  6. Step 6: Final answer
    x = 7,748.85

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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.