Home / 14,520.14-21,779.04-4,656.78

Finding the Fourth Proportional to 14,520.14, 21,779.04 and 4,656.78

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Solution

The fourth proportional to 14,520.14, 21,779.04 and 4,656.78 is: 6,984.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.14 : 21,779.04 = 4,656.78 : x
  2. Step 2: Convert to fraction form
    14,520.14/21,779.04 = 4,656.78/x
  3. Step 3: Cross multiply
    14,520.14x = 21,779.04 × 4,656.78
  4. Step 4: Simplify right side
    14,520.14x = 101,420,197.89
  5. Step 5: Solve for x
    x = 101,420,197.89/14,520.14
  6. Step 6: Final answer
    x = 6,984.79

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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.