Home / 13,636.94-18,818.86-7,668.65

Finding the Fourth Proportional to 13,636.94, 18,818.86 and 7,668.65

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Solution

The fourth proportional to 13,636.94, 18,818.86 and 7,668.65 is: 10,582.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.94 : 18,818.86 = 7,668.65 : x
  2. Step 2: Convert to fraction form
    13,636.94/18,818.86 = 7,668.65/x
  3. Step 3: Cross multiply
    13,636.94x = 18,818.86 × 7,668.65
  4. Step 4: Simplify right side
    13,636.94x = 144,315,278.61
  5. Step 5: Solve for x
    x = 144,315,278.61/13,636.94
  6. Step 6: Final answer
    x = 10,582.67

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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.