Home / 11,161.30-15,404.88-6,444.94

Finding the Fourth Proportional to 11,161.30, 15,404.88 and 6,444.94

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Solution

The fourth proportional to 11,161.30, 15,404.88 and 6,444.94 is: 8,895.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.30 : 15,404.88 = 6,444.94 : x
  2. Step 2: Convert to fraction form
    11,161.30/15,404.88 = 6,444.94/x
  3. Step 3: Cross multiply
    11,161.30x = 15,404.88 × 6,444.94
  4. Step 4: Simplify right side
    11,161.30x = 99,283,527.31
  5. Step 5: Solve for x
    x = 99,283,527.31/11,161.30
  6. Step 6: Final answer
    x = 8,895.34

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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.