Home / 15,617.92-21,552.36-8,544.40

Finding the Fourth Proportional to 15,617.92, 21,552.36 and 8,544.40

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Solution

The fourth proportional to 15,617.92, 21,552.36 and 8,544.40 is: 11,791.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,617.92 : 21,552.36 = 8,544.40 : x
  2. Step 2: Convert to fraction form
    15,617.92/21,552.36 = 8,544.40/x
  3. Step 3: Cross multiply
    15,617.92x = 21,552.36 × 8,544.40
  4. Step 4: Simplify right side
    15,617.92x = 184,151,984.78
  5. Step 5: Solve for x
    x = 184,151,984.78/15,617.92
  6. Step 6: Final answer
    x = 11,791.07

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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.