Home / 13,779.24-20,635.92-7,529.91

Finding the Fourth Proportional to 13,779.24, 20,635.92 and 7,529.91

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Solution

The fourth proportional to 13,779.24, 20,635.92 and 7,529.91 is: 11,276.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779.24 : 20,635.92 = 7,529.91 : x
  2. Step 2: Convert to fraction form
    13,779.24/20,635.92 = 7,529.91/x
  3. Step 3: Cross multiply
    13,779.24x = 20,635.92 × 7,529.91
  4. Step 4: Simplify right side
    13,779.24x = 155,386,620.37
  5. Step 5: Solve for x
    x = 155,386,620.37/13,779.24
  6. Step 6: Final answer
    x = 11,276.86

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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.