Home / 7,708.18-11,557.41-4,247.86

Finding the Fourth Proportional to 7,708.18, 11,557.41 and 4,247.86

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Solution

The fourth proportional to 7,708.18, 11,557.41 and 4,247.86 is: 6,369.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,708.18 : 11,557.41 = 4,247.86 : x
  2. Step 2: Convert to fraction form
    7,708.18/11,557.41 = 4,247.86/x
  3. Step 3: Cross multiply
    7,708.18x = 11,557.41 × 4,247.86
  4. Step 4: Simplify right side
    7,708.18x = 49,094,259.64
  5. Step 5: Solve for x
    x = 49,094,259.64/7,708.18
  6. Step 6: Final answer
    x = 6,369.11

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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.