Home / 9,247.78-13,871.68-3,091.78

Finding the Fourth Proportional to 9,247.78, 13,871.68 and 3,091.78

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Solution

The fourth proportional to 9,247.78, 13,871.68 and 3,091.78 is: 4,637.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,247.78 : 13,871.68 = 3,091.78 : x
  2. Step 2: Convert to fraction form
    9,247.78/13,871.68 = 3,091.78/x
  3. Step 3: Cross multiply
    9,247.78x = 13,871.68 × 3,091.78
  4. Step 4: Simplify right side
    9,247.78x = 42,888,192.40
  5. Step 5: Solve for x
    x = 42,888,192.40/9,247.78
  6. Step 6: Final answer
    x = 4,637.67

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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.