Home / 10,955.88-16,435.80-3,165.12

Finding the Fourth Proportional to 10,955.88, 16,435.80 and 3,165.12

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Solution

The fourth proportional to 10,955.88, 16,435.80 and 3,165.12 is: 4,748.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.88 : 16,435.80 = 3,165.12 : x
  2. Step 2: Convert to fraction form
    10,955.88/16,435.80 = 3,165.12/x
  3. Step 3: Cross multiply
    10,955.88x = 16,435.80 × 3,165.12
  4. Step 4: Simplify right side
    10,955.88x = 52,021,279.30
  5. Step 5: Solve for x
    x = 52,021,279.30/10,955.88
  6. Step 6: Final answer
    x = 4,748.25

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1.5x scale

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.