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Finding the Fourth Proportional to 15,999.90, 23,992.65 and 6,135.90

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Solution

The fourth proportional to 15,999.90, 23,992.65 and 6,135.90 is: 9,201.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.90 : 23,992.65 = 6,135.90 : x
  2. Step 2: Convert to fraction form
    15,999.90/23,992.65 = 6,135.90/x
  3. Step 3: Cross multiply
    15,999.90x = 23,992.65 × 6,135.90
  4. Step 4: Simplify right side
    15,999.90x = 147,216,501.14
  5. Step 5: Solve for x
    x = 147,216,501.14/15,999.90
  6. Step 6: Final answer
    x = 9,201.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.