Home / 14,505.29-20,015.80-8,536.61

Finding the Fourth Proportional to 14,505.29, 20,015.80 and 8,536.61

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Solution

The fourth proportional to 14,505.29, 20,015.80 and 8,536.61 is: 11,779.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,505.29 : 20,015.80 = 8,536.61 : x
  2. Step 2: Convert to fraction form
    14,505.29/20,015.80 = 8,536.61/x
  3. Step 3: Cross multiply
    14,505.29x = 20,015.80 × 8,536.61
  4. Step 4: Simplify right side
    14,505.29x = 170,866,957.02
  5. Step 5: Solve for x
    x = 170,866,957.02/14,505.29
  6. Step 6: Final answer
    x = 11,779.63

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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.