Home / 11,685.74-17,528.63-5,112.43

Finding the Fourth Proportional to 11,685.74, 17,528.63 and 5,112.43

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Solution

The fourth proportional to 11,685.74, 17,528.63 and 5,112.43 is: 7,668.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.74 : 17,528.63 = 5,112.43 : x
  2. Step 2: Convert to fraction form
    11,685.74/17,528.63 = 5,112.43/x
  3. Step 3: Cross multiply
    11,685.74x = 17,528.63 × 5,112.43
  4. Step 4: Simplify right side
    11,685.74x = 89,613,824.49
  5. Step 5: Solve for x
    x = 89,613,824.49/11,685.74
  6. Step 6: Final answer
    x = 7,668.65

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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.