Home / 15,716.14-21,676.96-10,671.60

Finding the Fourth Proportional to 15,716.14, 21,676.96 and 10,671.60

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Solution

The fourth proportional to 15,716.14, 21,676.96 and 10,671.60 is: 14,719.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,716.14 : 21,676.96 = 10,671.60 : x
  2. Step 2: Convert to fraction form
    15,716.14/21,676.96 = 10,671.60/x
  3. Step 3: Cross multiply
    15,716.14x = 21,676.96 × 10,671.60
  4. Step 4: Simplify right side
    15,716.14x = 231,327,846.34
  5. Step 5: Solve for x
    x = 231,327,846.34/15,716.14
  6. Step 6: Final answer
    x = 14,719.13

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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.