Home / 10,720.54-14,789.40-6,944.97

Finding the Fourth Proportional to 10,720.54, 14,789.40 and 6,944.97

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Solution

The fourth proportional to 10,720.54, 14,789.40 and 6,944.97 is: 9,580.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.54 : 14,789.40 = 6,944.97 : x
  2. Step 2: Convert to fraction form
    10,720.54/14,789.40 = 6,944.97/x
  3. Step 3: Cross multiply
    10,720.54x = 14,789.40 × 6,944.97
  4. Step 4: Simplify right side
    10,720.54x = 102,711,939.32
  5. Step 5: Solve for x
    x = 102,711,939.32/10,720.54
  6. Step 6: Final answer
    x = 9,580.86

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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.