Home / 14,543.10-21,771.58-8,978.54

Finding the Fourth Proportional to 14,543.10, 21,771.58 and 8,978.54

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Solution

The fourth proportional to 14,543.10, 21,771.58 and 8,978.54 is: 13,441.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,543.10 : 21,771.58 = 8,978.54 : x
  2. Step 2: Convert to fraction form
    14,543.10/21,771.58 = 8,978.54/x
  3. Step 3: Cross multiply
    14,543.10x = 21,771.58 × 8,978.54
  4. Step 4: Simplify right side
    14,543.10x = 195,477,001.89
  5. Step 5: Solve for x
    x = 195,477,001.89/14,543.10
  6. Step 6: Final answer
    x = 13,441.22

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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.