Home / 8,319.03-11,477.48-5,175.02

Finding the Fourth Proportional to 8,319.03, 11,477.48 and 5,175.02

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Solution

The fourth proportional to 8,319.03, 11,477.48 and 5,175.02 is: 7,139.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.03 : 11,477.48 = 5,175.02 : x
  2. Step 2: Convert to fraction form
    8,319.03/11,477.48 = 5,175.02/x
  3. Step 3: Cross multiply
    8,319.03x = 11,477.48 × 5,175.02
  4. Step 4: Simplify right side
    8,319.03x = 59,396,105.29
  5. Step 5: Solve for x
    x = 59,396,105.29/8,319.03
  6. Step 6: Final answer
    x = 7,139.79

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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.