Home / 16,999.86-25,499.79-5,313.18

Finding the Fourth Proportional to 16,999.86, 25,499.79 and 5,313.18

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Solution

The fourth proportional to 16,999.86, 25,499.79 and 5,313.18 is: 7,969.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,999.86 : 25,499.79 = 5,313.18 : x
  2. Step 2: Convert to fraction form
    16,999.86/25,499.79 = 5,313.18/x
  3. Step 3: Cross multiply
    16,999.86x = 25,499.79 × 5,313.18
  4. Step 4: Simplify right side
    16,999.86x = 135,484,974.23
  5. Step 5: Solve for x
    x = 135,484,974.23/16,999.86
  6. Step 6: Final answer
    x = 7,969.77

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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.