Home / 14,779.05-20,376.95-9,180.33

Finding the Fourth Proportional to 14,779.05, 20,376.95 and 9,180.33

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Solution

The fourth proportional to 14,779.05, 20,376.95 and 9,180.33 is: 12,657.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,779.05 : 20,376.95 = 9,180.33 : x
  2. Step 2: Convert to fraction form
    14,779.05/20,376.95 = 9,180.33/x
  3. Step 3: Cross multiply
    14,779.05x = 20,376.95 × 9,180.33
  4. Step 4: Simplify right side
    14,779.05x = 187,067,079.49
  5. Step 5: Solve for x
    x = 187,067,079.49/14,779.05
  6. Step 6: Final answer
    x = 12,657.58

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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.