Home / 8,977.64-12,387.96-4,998.44

Finding the Fourth Proportional to 8,977.64, 12,387.96 and 4,998.44

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Solution

The fourth proportional to 8,977.64, 12,387.96 and 4,998.44 is: 6,897.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.64 : 12,387.96 = 4,998.44 : x
  2. Step 2: Convert to fraction form
    8,977.64/12,387.96 = 4,998.44/x
  3. Step 3: Cross multiply
    8,977.64x = 12,387.96 × 4,998.44
  4. Step 4: Simplify right side
    8,977.64x = 61,920,474.78
  5. Step 5: Solve for x
    x = 61,920,474.78/8,977.64
  6. Step 6: Final answer
    x = 6,897.19

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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.