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Finding the Fourth Proportional to 15,928.60, 23,892.90 and 7,612.60

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Solution

The fourth proportional to 15,928.60, 23,892.90 and 7,612.60 is: 11,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,928.60 : 23,892.90 = 7,612.60 : x
  2. Step 2: Convert to fraction form
    15,928.60/23,892.90 = 7,612.60/x
  3. Step 3: Cross multiply
    15,928.60x = 23,892.90 × 7,612.60
  4. Step 4: Simplify right side
    15,928.60x = 181,887,090.54
  5. Step 5: Solve for x
    x = 181,887,090.54/15,928.60
  6. Step 6: Final answer
    x = 11,418.90

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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.