Home / 11,779.45-16,256.68-6,475.30

Finding the Fourth Proportional to 11,779.45, 16,256.68 and 6,475.30

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Solution

The fourth proportional to 11,779.45, 16,256.68 and 6,475.30 is: 8,936.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,779.45 : 16,256.68 = 6,475.30 : x
  2. Step 2: Convert to fraction form
    11,779.45/16,256.68 = 6,475.30/x
  3. Step 3: Cross multiply
    11,779.45x = 16,256.68 × 6,475.30
  4. Step 4: Simplify right side
    11,779.45x = 105,266,880.00
  5. Step 5: Solve for x
    x = 105,266,880.00/11,779.45
  6. Step 6: Final answer
    x = 8,936.49

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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.