Home / 8,319.53-11,478.16-5,175.52

Finding the Fourth Proportional to 8,319.53, 11,478.16 and 5,175.52

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Solution

The fourth proportional to 8,319.53, 11,478.16 and 5,175.52 is: 7,140.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.53 : 11,478.16 = 5,175.52 : x
  2. Step 2: Convert to fraction form
    8,319.53/11,478.16 = 5,175.52/x
  3. Step 3: Cross multiply
    8,319.53x = 11,478.16 × 5,175.52
  4. Step 4: Simplify right side
    8,319.53x = 59,405,446.64
  5. Step 5: Solve for x
    x = 59,405,446.64/8,319.53
  6. Step 6: Final answer
    x = 7,140.48

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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.