Home / 18,779.06-28,167.57-4,738.92

Finding the Fourth Proportional to 18,779.06, 28,167.57 and 4,738.92

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Solution

The fourth proportional to 18,779.06, 28,167.57 and 4,738.92 is: 7,108.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,779.06 : 28,167.57 = 4,738.92 : x
  2. Step 2: Convert to fraction form
    18,779.06/28,167.57 = 4,738.92/x
  3. Step 3: Cross multiply
    18,779.06x = 28,167.57 × 4,738.92
  4. Step 4: Simplify right side
    18,779.06x = 133,483,860.82
  5. Step 5: Solve for x
    x = 133,483,860.82/18,779.06
  6. Step 6: Final answer
    x = 7,108.12

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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.