Home / 7,015.27-10,520.80-5,779.61

Finding the Fourth Proportional to 7,015.27, 10,520.80 and 5,779.61

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Solution

The fourth proportional to 7,015.27, 10,520.80 and 5,779.61 is: 8,667.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.27 : 10,520.80 = 5,779.61 : x
  2. Step 2: Convert to fraction form
    7,015.27/10,520.80 = 5,779.61/x
  3. Step 3: Cross multiply
    7,015.27x = 10,520.80 × 5,779.61
  4. Step 4: Simplify right side
    7,015.27x = 60,806,120.89
  5. Step 5: Solve for x
    x = 60,806,120.89/7,015.27
  6. Step 6: Final answer
    x = 8,667.68

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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.