Home / 9,176.88-12,664.16-4,985.16

Finding the Fourth Proportional to 9,176.88, 12,664.16 and 4,985.16

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Solution

The fourth proportional to 9,176.88, 12,664.16 and 4,985.16 is: 6,879.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,176.88 : 12,664.16 = 4,985.16 : x
  2. Step 2: Convert to fraction form
    9,176.88/12,664.16 = 4,985.16/x
  3. Step 3: Cross multiply
    9,176.88x = 12,664.16 × 4,985.16
  4. Step 4: Simplify right side
    9,176.88x = 63,132,863.87
  5. Step 5: Solve for x
    x = 63,132,863.87/9,176.88
  6. Step 6: Final answer
    x = 6,879.56

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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.