Home / 8,538.52-11,782.02-5,181.48

Finding the Fourth Proportional to 8,538.52, 11,782.02 and 5,181.48

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Solution

The fourth proportional to 8,538.52, 11,782.02 and 5,181.48 is: 7,149.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538.52 : 11,782.02 = 5,181.48 : x
  2. Step 2: Convert to fraction form
    8,538.52/11,782.02 = 5,181.48/x
  3. Step 3: Cross multiply
    8,538.52x = 11,782.02 × 5,181.48
  4. Step 4: Simplify right side
    8,538.52x = 61,048,300.99
  5. Step 5: Solve for x
    x = 61,048,300.99/8,538.52
  6. Step 6: Final answer
    x = 7,149.75

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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.