Home / 10,719.79-14,788.37-6,944.21

Finding the Fourth Proportional to 10,719.79, 14,788.37 and 6,944.21

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Solution

The fourth proportional to 10,719.79, 14,788.37 and 6,944.21 is: 9,579.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,719.79 : 14,788.37 = 6,944.21 : x
  2. Step 2: Convert to fraction form
    10,719.79/14,788.37 = 6,944.21/x
  3. Step 3: Cross multiply
    10,719.79x = 14,788.37 × 6,944.21
  4. Step 4: Simplify right side
    10,719.79x = 102,693,546.84
  5. Step 5: Solve for x
    x = 102,693,546.84/10,719.79
  6. Step 6: Final answer
    x = 9,579.81

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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.