Home / 10,091.21-15,137.38-3,071.45

Finding the Fourth Proportional to 10,091.21, 15,137.38 and 3,071.45

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Solution

The fourth proportional to 10,091.21, 15,137.38 and 3,071.45 is: 4,607.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,091.21 : 15,137.38 = 3,071.45 : x
  2. Step 2: Convert to fraction form
    10,091.21/15,137.38 = 3,071.45/x
  3. Step 3: Cross multiply
    10,091.21x = 15,137.38 × 3,071.45
  4. Step 4: Simplify right side
    10,091.21x = 46,493,705.80
  5. Step 5: Solve for x
    x = 46,493,705.80/10,091.21
  6. Step 6: Final answer
    x = 4,607.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.