Home / 8,455.73-11,674.65-5,270.30

Finding the Fourth Proportional to 8,455.73, 11,674.65 and 5,270.30

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Solution

The fourth proportional to 8,455.73, 11,674.65 and 5,270.30 is: 7,276.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.73 : 11,674.65 = 5,270.30 : x
  2. Step 2: Convert to fraction form
    8,455.73/11,674.65 = 5,270.30/x
  3. Step 3: Cross multiply
    8,455.73x = 11,674.65 × 5,270.30
  4. Step 4: Simplify right side
    8,455.73x = 61,528,907.90
  5. Step 5: Solve for x
    x = 61,528,907.90/8,455.73
  6. Step 6: Final answer
    x = 7,276.59

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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.