Home / 11,325.85-15,629.14-6,290.39

Finding the Fourth Proportional to 11,325.85, 15,629.14 and 6,290.39

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Solution

The fourth proportional to 11,325.85, 15,629.14 and 6,290.39 is: 8,680.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,325.85 : 15,629.14 = 6,290.39 : x
  2. Step 2: Convert to fraction form
    11,325.85/15,629.14 = 6,290.39/x
  3. Step 3: Cross multiply
    11,325.85x = 15,629.14 × 6,290.39
  4. Step 4: Simplify right side
    11,325.85x = 98,313,354.51
  5. Step 5: Solve for x
    x = 98,313,354.51/11,325.85
  6. Step 6: Final answer
    x = 8,680.44

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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.