Home / 11,877.88-16,376.58-7,621.43

Finding the Fourth Proportional to 11,877.88, 16,376.58 and 7,621.43

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Solution

The fourth proportional to 11,877.88, 16,376.58 and 7,621.43 is: 10,508.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,877.88 : 16,376.58 = 7,621.43 : x
  2. Step 2: Convert to fraction form
    11,877.88/16,376.58 = 7,621.43/x
  3. Step 3: Cross multiply
    11,877.88x = 16,376.58 × 7,621.43
  4. Step 4: Simplify right side
    11,877.88x = 124,812,945.32
  5. Step 5: Solve for x
    x = 124,812,945.32/11,877.88
  6. Step 6: Final answer
    x = 10,508.02

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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.