Home / 11,109.20-16,668.60-5,637.20

Finding the Fourth Proportional to 11,109.20, 16,668.60 and 5,637.20

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Solution

The fourth proportional to 11,109.20, 16,668.60 and 5,637.20 is: 8,458.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.20 : 16,668.60 = 5,637.20 : x
  2. Step 2: Convert to fraction form
    11,109.20/16,668.60 = 5,637.20/x
  3. Step 3: Cross multiply
    11,109.20x = 16,668.60 × 5,637.20
  4. Step 4: Simplify right side
    11,109.20x = 93,964,231.92
  5. Step 5: Solve for x
    x = 93,964,231.92/11,109.20
  6. Step 6: Final answer
    x = 8,458.24

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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.