Home / 11,166.20-15,408.02-6,628.16

Finding the Fourth Proportional to 11,166.20, 15,408.02 and 6,628.16

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Solution

The fourth proportional to 11,166.20, 15,408.02 and 6,628.16 is: 9,146.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.20 : 15,408.02 = 6,628.16 : x
  2. Step 2: Convert to fraction form
    11,166.20/15,408.02 = 6,628.16/x
  3. Step 3: Cross multiply
    11,166.20x = 15,408.02 × 6,628.16
  4. Step 4: Simplify right side
    11,166.20x = 102,126,821.84
  5. Step 5: Solve for x
    x = 102,126,821.84/11,166.20
  6. Step 6: Final answer
    x = 9,146.07

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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.