Home / 14,520.72-21,779.04-4,660.86

Finding the Fourth Proportional to 14,520.72, 21,779.04 and 4,660.86

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Solution

The fourth proportional to 14,520.72, 21,779.04 and 4,660.86 is: 6,990.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.72 : 21,779.04 = 4,660.86 : x
  2. Step 2: Convert to fraction form
    14,520.72/21,779.04 = 4,660.86/x
  3. Step 3: Cross multiply
    14,520.72x = 21,779.04 × 4,660.86
  4. Step 4: Simplify right side
    14,520.72x = 101,509,056.37
  5. Step 5: Solve for x
    x = 101,509,056.37/14,520.72
  6. Step 6: Final answer
    x = 6,990.64

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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.