Home / 15,403.57-23,091.36-7,999.36

Finding the Fourth Proportional to 15,403.57, 23,091.36 and 7,999.36

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Solution

The fourth proportional to 15,403.57, 23,091.36 and 7,999.36 is: 11,991.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,403.57 : 23,091.36 = 7,999.36 : x
  2. Step 2: Convert to fraction form
    15,403.57/23,091.36 = 7,999.36/x
  3. Step 3: Cross multiply
    15,403.57x = 23,091.36 × 7,999.36
  4. Step 4: Simplify right side
    15,403.57x = 184,716,101.53
  5. Step 5: Solve for x
    x = 184,716,101.53/15,403.57
  6. Step 6: Final answer
    x = 11,991.77

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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.