Home / 10,955.26-15,118.26-5,919.48

Finding the Fourth Proportional to 10,955.26, 15,118.26 and 5,919.48

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Solution

The fourth proportional to 10,955.26, 15,118.26 and 5,919.48 is: 8,168.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.26 : 15,118.26 = 5,919.48 : x
  2. Step 2: Convert to fraction form
    10,955.26/15,118.26 = 5,919.48/x
  3. Step 3: Cross multiply
    10,955.26x = 15,118.26 × 5,919.48
  4. Step 4: Simplify right side
    10,955.26x = 89,492,215.51
  5. Step 5: Solve for x
    x = 89,492,215.51/10,955.26
  6. Step 6: Final answer
    x = 8,168.88

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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.