Home / 6,318.60-9,477.90-4,129.80

Finding the Fourth Proportional to 6,318.60, 9,477.90 and 4,129.80

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Solution

The fourth proportional to 6,318.60, 9,477.90 and 4,129.80 is: 6,194.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,318.60 : 9,477.90 = 4,129.80 : x
  2. Step 2: Convert to fraction form
    6,318.60/9,477.90 = 4,129.80/x
  3. Step 3: Cross multiply
    6,318.60x = 9,477.90 × 4,129.80
  4. Step 4: Simplify right side
    6,318.60x = 39,141,831.42
  5. Step 5: Solve for x
    x = 39,141,831.42/6,318.60
  6. Step 6: Final answer
    x = 6,194.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.