Home / 12,166.36-16,772.34-8,628.28

Finding the Fourth Proportional to 12,166.36, 16,772.34 and 8,628.28

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Solution

The fourth proportional to 12,166.36, 16,772.34 and 8,628.28 is: 11,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,166.36 : 16,772.34 = 8,628.28 : x
  2. Step 2: Convert to fraction form
    12,166.36/16,772.34 = 8,628.28/x
  3. Step 3: Cross multiply
    12,166.36x = 16,772.34 × 8,628.28
  4. Step 4: Simplify right side
    12,166.36x = 144,716,445.78
  5. Step 5: Solve for x
    x = 144,716,445.78/12,166.36
  6. Step 6: Final answer
    x = 11,894.80

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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.