Home / 9,622.68-14,420.55-7,280.78

Finding the Fourth Proportional to 9,622.68, 14,420.55 and 7,280.78

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Solution

The fourth proportional to 9,622.68, 14,420.55 and 7,280.78 is: 10,910.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,622.68 : 14,420.55 = 7,280.78 : x
  2. Step 2: Convert to fraction form
    9,622.68/14,420.55 = 7,280.78/x
  3. Step 3: Cross multiply
    9,622.68x = 14,420.55 × 7,280.78
  4. Step 4: Simplify right side
    9,622.68x = 104,992,779.93
  5. Step 5: Solve for x
    x = 104,992,779.93/9,622.68
  6. Step 6: Final answer
    x = 10,910.97

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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.