Home / 15,712.17-23,571.73-5,185.45

Finding the Fourth Proportional to 15,712.17, 23,571.73 and 5,185.45

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Solution

The fourth proportional to 15,712.17, 23,571.73 and 5,185.45 is: 7,779.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,712.17 : 23,571.73 = 5,185.45 : x
  2. Step 2: Convert to fraction form
    15,712.17/23,571.73 = 5,185.45/x
  3. Step 3: Cross multiply
    15,712.17x = 23,571.73 × 5,185.45
  4. Step 4: Simplify right side
    15,712.17x = 122,230,027.33
  5. Step 5: Solve for x
    x = 122,230,027.33/15,712.17
  6. Step 6: Final answer
    x = 7,779.32

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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.