Home / 12,246.26-16,903.20-11,415.20

Finding the Fourth Proportional to 12,246.26, 16,903.20 and 11,415.20

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Solution

The fourth proportional to 12,246.26, 16,903.20 and 11,415.20 is: 15,756.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,246.26 : 16,903.20 = 11,415.20 : x
  2. Step 2: Convert to fraction form
    12,246.26/16,903.20 = 11,415.20/x
  3. Step 3: Cross multiply
    12,246.26x = 16,903.20 × 11,415.20
  4. Step 4: Simplify right side
    12,246.26x = 192,953,408.64
  5. Step 5: Solve for x
    x = 192,953,408.64/12,246.26
  6. Step 6: Final answer
    x = 15,756.11

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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.