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Finding the Fourth Proportional to 15,999.64, 23,997.30 and 4,313.80

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Solution

The fourth proportional to 15,999.64, 23,997.30 and 4,313.80 is: 6,470.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.64 : 23,997.30 = 4,313.80 : x
  2. Step 2: Convert to fraction form
    15,999.64/23,997.30 = 4,313.80/x
  3. Step 3: Cross multiply
    15,999.64x = 23,997.30 × 4,313.80
  4. Step 4: Simplify right side
    15,999.64x = 103,519,552.74
  5. Step 5: Solve for x
    x = 103,519,552.74/15,999.64
  6. Step 6: Final answer
    x = 6,470.12

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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.