Home / 11,126.40-16,669.35-8,801.70

Finding the Fourth Proportional to 11,126.40, 16,669.35 and 8,801.70

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Solution

The fourth proportional to 11,126.40, 16,669.35 and 8,801.70 is: 13,186.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,126.40 : 16,669.35 = 8,801.70 : x
  2. Step 2: Convert to fraction form
    11,126.40/16,669.35 = 8,801.70/x
  3. Step 3: Cross multiply
    11,126.40x = 16,669.35 × 8,801.70
  4. Step 4: Simplify right side
    11,126.40x = 146,718,617.90
  5. Step 5: Solve for x
    x = 146,718,617.90/11,126.40
  6. Step 6: Final answer
    x = 13,186.53

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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.