Home / 15,617.86-21,552.64-8,544.28

Finding the Fourth Proportional to 15,617.86, 21,552.64 and 8,544.28

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Solution

The fourth proportional to 15,617.86, 21,552.64 and 8,544.28 is: 11,791.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,617.86 : 21,552.64 = 8,544.28 : x
  2. Step 2: Convert to fraction form
    15,617.86/21,552.64 = 8,544.28/x
  3. Step 3: Cross multiply
    15,617.86x = 21,552.64 × 8,544.28
  4. Step 4: Simplify right side
    15,617.86x = 184,151,790.90
  5. Step 5: Solve for x
    x = 184,151,790.90/15,617.86
  6. Step 6: Final answer
    x = 11,791.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.