Home / 10,949.34-15,110.09-5,981.34

Finding the Fourth Proportional to 10,949.34, 15,110.09 and 5,981.34

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Solution

The fourth proportional to 10,949.34, 15,110.09 and 5,981.34 is: 8,254.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,949.34 : 15,110.09 = 5,981.34 : x
  2. Step 2: Convert to fraction form
    10,949.34/15,110.09 = 5,981.34/x
  3. Step 3: Cross multiply
    10,949.34x = 15,110.09 × 5,981.34
  4. Step 4: Simplify right side
    10,949.34x = 90,378,668.55
  5. Step 5: Solve for x
    x = 90,378,668.55/10,949.34
  6. Step 6: Final answer
    x = 8,254.25

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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.