Home / 8,270.16-12,403.20-4,939.32

Finding the Fourth Proportional to 8,270.16, 12,403.20 and 4,939.32

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Solution

The fourth proportional to 8,270.16, 12,403.20 and 4,939.32 is: 7,407.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270.16 : 12,403.20 = 4,939.32 : x
  2. Step 2: Convert to fraction form
    8,270.16/12,403.20 = 4,939.32/x
  3. Step 3: Cross multiply
    8,270.16x = 12,403.20 × 4,939.32
  4. Step 4: Simplify right side
    8,270.16x = 61,263,373.82
  5. Step 5: Solve for x
    x = 61,263,373.82/8,270.16
  6. Step 6: Final answer
    x = 7,407.76

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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.