Home / 12,316.44-18,457.62-10,668.90

Finding the Fourth Proportional to 12,316.44, 18,457.62 and 10,668.90

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Solution

The fourth proportional to 12,316.44, 18,457.62 and 10,668.90 is: 15,988.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.44 : 18,457.62 = 10,668.90 : x
  2. Step 2: Convert to fraction form
    12,316.44/18,457.62 = 10,668.90/x
  3. Step 3: Cross multiply
    12,316.44x = 18,457.62 × 10,668.90
  4. Step 4: Simplify right side
    12,316.44x = 196,922,502.02
  5. Step 5: Solve for x
    x = 196,922,502.02/12,316.44
  6. Step 6: Final answer
    x = 15,988.59

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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.