Home / 9,519.90-13,137.75-5,328.06

Finding the Fourth Proportional to 9,519.90, 13,137.75 and 5,328.06

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Solution

The fourth proportional to 9,519.90, 13,137.75 and 5,328.06 is: 7,352.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,519.90 : 13,137.75 = 5,328.06 : x
  2. Step 2: Convert to fraction form
    9,519.90/13,137.75 = 5,328.06/x
  3. Step 3: Cross multiply
    9,519.90x = 13,137.75 × 5,328.06
  4. Step 4: Simplify right side
    9,519.90x = 69,998,720.27
  5. Step 5: Solve for x
    x = 69,998,720.27/9,519.90
  6. Step 6: Final answer
    x = 7,352.88

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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.