Home / 14,693.20-20,276.66-7,978.94

Finding the Fourth Proportional to 14,693.20, 20,276.66 and 7,978.94

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Solution

The fourth proportional to 14,693.20, 20,276.66 and 7,978.94 is: 11,010.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,693.20 : 20,276.66 = 7,978.94 : x
  2. Step 2: Convert to fraction form
    14,693.20/20,276.66 = 7,978.94/x
  3. Step 3: Cross multiply
    14,693.20x = 20,276.66 × 7,978.94
  4. Step 4: Simplify right side
    14,693.20x = 161,786,233.59
  5. Step 5: Solve for x
    x = 161,786,233.59/14,693.20
  6. Step 6: Final answer
    x = 11,010.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.