Home / 15,002.82-20,682.34-11,810.61

Finding the Fourth Proportional to 15,002.82, 20,682.34 and 11,810.61

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Solution

The fourth proportional to 15,002.82, 20,682.34 and 11,810.61 is: 16,281.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.82 : 20,682.34 = 11,810.61 : x
  2. Step 2: Convert to fraction form
    15,002.82/20,682.34 = 11,810.61/x
  3. Step 3: Cross multiply
    15,002.82x = 20,682.34 × 11,810.61
  4. Step 4: Simplify right side
    15,002.82x = 244,271,022.10
  5. Step 5: Solve for x
    x = 244,271,022.10/15,002.82
  6. Step 6: Final answer
    x = 16,281.67

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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.