Home / 10,954.72-15,117.51-5,918.94

Finding the Fourth Proportional to 10,954.72, 15,117.51 and 5,918.94

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Solution

The fourth proportional to 10,954.72, 15,117.51 and 5,918.94 is: 8,168.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,954.72 : 15,117.51 = 5,918.94 : x
  2. Step 2: Convert to fraction form
    10,954.72/15,117.51 = 5,918.94/x
  3. Step 3: Cross multiply
    10,954.72x = 15,117.51 × 5,918.94
  4. Step 4: Simplify right side
    10,954.72x = 89,479,668.33
  5. Step 5: Solve for x
    x = 89,479,668.33/10,954.72
  6. Step 6: Final answer
    x = 8,168.14

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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.