Home / 11,779.29-17,670.78-4,384.80

Finding the Fourth Proportional to 11,779.29, 17,670.78 and 4,384.80

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Solution

The fourth proportional to 11,779.29, 17,670.78 and 4,384.80 is: 6,577.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,779.29 : 17,670.78 = 4,384.80 : x
  2. Step 2: Convert to fraction form
    11,779.29/17,670.78 = 4,384.80/x
  3. Step 3: Cross multiply
    11,779.29x = 17,670.78 × 4,384.80
  4. Step 4: Simplify right side
    11,779.29x = 77,482,836.14
  5. Step 5: Solve for x
    x = 77,482,836.14/11,779.29
  6. Step 6: Final answer
    x = 6,577.89

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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.