Home / 16,999.31-25,499.88-5,313.44

Finding the Fourth Proportional to 16,999.31, 25,499.88 and 5,313.44

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Solution

The fourth proportional to 16,999.31, 25,499.88 and 5,313.44 is: 7,970.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,999.31 : 25,499.88 = 5,313.44 : x
  2. Step 2: Convert to fraction form
    16,999.31/25,499.88 = 5,313.44/x
  3. Step 3: Cross multiply
    16,999.31x = 25,499.88 × 5,313.44
  4. Step 4: Simplify right side
    16,999.31x = 135,492,146.14
  5. Step 5: Solve for x
    x = 135,492,146.14/16,999.31
  6. Step 6: Final answer
    x = 7,970.45

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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.