Home / 9,176.92-12,664.08-4,985.20

Finding the Fourth Proportional to 9,176.92, 12,664.08 and 4,985.20

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Solution

The fourth proportional to 9,176.92, 12,664.08 and 4,985.20 is: 6,879.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,176.92 : 12,664.08 = 4,985.20 : x
  2. Step 2: Convert to fraction form
    9,176.92/12,664.08 = 4,985.20/x
  3. Step 3: Cross multiply
    9,176.92x = 12,664.08 × 4,985.20
  4. Step 4: Simplify right side
    9,176.92x = 63,132,971.62
  5. Step 5: Solve for x
    x = 63,132,971.62/9,176.92
  6. Step 6: Final answer
    x = 6,879.54

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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.