Home / 7,977.15-11,008.62-4,440.60

Finding the Fourth Proportional to 7,977.15, 11,008.62 and 4,440.60

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Solution

The fourth proportional to 7,977.15, 11,008.62 and 4,440.60 is: 6,128.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.15 : 11,008.62 = 4,440.60 : x
  2. Step 2: Convert to fraction form
    7,977.15/11,008.62 = 4,440.60/x
  3. Step 3: Cross multiply
    7,977.15x = 11,008.62 × 4,440.60
  4. Step 4: Simplify right side
    7,977.15x = 48,884,877.97
  5. Step 5: Solve for x
    x = 48,884,877.97/7,977.15
  6. Step 6: Final answer
    x = 6,128.11

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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.