Home / 11,091.20-16,636.80-10,246.40

Finding the Fourth Proportional to 11,091.20, 16,636.80 and 10,246.40

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Solution

The fourth proportional to 11,091.20, 16,636.80 and 10,246.40 is: 15,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,091.20 : 16,636.80 = 10,246.40 : x
  2. Step 2: Convert to fraction form
    11,091.20/16,636.80 = 10,246.40/x
  3. Step 3: Cross multiply
    11,091.20x = 16,636.80 × 10,246.40
  4. Step 4: Simplify right side
    11,091.20x = 170,467,307.52
  5. Step 5: Solve for x
    x = 170,467,307.52/11,091.20
  6. Step 6: Final answer
    x = 15,369.60

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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.