Home / 9,176.89-12,664.11-4,985.14

Finding the Fourth Proportional to 9,176.89, 12,664.11 and 4,985.14

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Solution

The fourth proportional to 9,176.89, 12,664.11 and 4,985.14 is: 6,879.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,176.89 : 12,664.11 = 4,985.14 : x
  2. Step 2: Convert to fraction form
    9,176.89/12,664.11 = 4,985.14/x
  3. Step 3: Cross multiply
    9,176.89x = 12,664.11 × 4,985.14
  4. Step 4: Simplify right side
    9,176.89x = 63,132,361.33
  5. Step 5: Solve for x
    x = 63,132,361.33/9,176.89
  6. Step 6: Final answer
    x = 6,879.49

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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.