Home / 13,668.12-18,842.76-10,314.72

Finding the Fourth Proportional to 13,668.12, 18,842.76 and 10,314.72

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Solution

The fourth proportional to 13,668.12, 18,842.76 and 10,314.72 is: 14,219.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668.12 : 18,842.76 = 10,314.72 : x
  2. Step 2: Convert to fraction form
    13,668.12/18,842.76 = 10,314.72/x
  3. Step 3: Cross multiply
    13,668.12x = 18,842.76 × 10,314.72
  4. Step 4: Simplify right side
    13,668.12x = 194,357,793.43
  5. Step 5: Solve for x
    x = 194,357,793.43/13,668.12
  6. Step 6: Final answer
    x = 14,219.79

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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.