Home / 11,905.70-16,430.45-6,600.53

Finding the Fourth Proportional to 11,905.70, 16,430.45 and 6,600.53

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Solution

The fourth proportional to 11,905.70, 16,430.45 and 6,600.53 is: 9,109.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,905.70 : 16,430.45 = 6,600.53 : x
  2. Step 2: Convert to fraction form
    11,905.70/16,430.45 = 6,600.53/x
  3. Step 3: Cross multiply
    11,905.70x = 16,430.45 × 6,600.53
  4. Step 4: Simplify right side
    11,905.70x = 108,449,686.21
  5. Step 5: Solve for x
    x = 108,449,686.21/11,905.70
  6. Step 6: Final answer
    x = 9,109.06

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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.