Home / 13,636.68-18,819.16-7,668.32

Finding the Fourth Proportional to 13,636.68, 18,819.16 and 7,668.32

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Solution

The fourth proportional to 13,636.68, 18,819.16 and 7,668.32 is: 10,582.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.68 : 18,819.16 = 7,668.32 : x
  2. Step 2: Convert to fraction form
    13,636.68/18,819.16 = 7,668.32/x
  3. Step 3: Cross multiply
    13,636.68x = 18,819.16 × 7,668.32
  4. Step 4: Simplify right side
    13,636.68x = 144,311,341.01
  5. Step 5: Solve for x
    x = 144,311,341.01/13,636.68
  6. Step 6: Final answer
    x = 10,582.59

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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.