Home / 14,218.31-21,315.12-8,676.32

Finding the Fourth Proportional to 14,218.31, 21,315.12 and 8,676.32

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Solution

The fourth proportional to 14,218.31, 21,315.12 and 8,676.32 is: 13,006.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.31 : 21,315.12 = 8,676.32 : x
  2. Step 2: Convert to fraction form
    14,218.31/21,315.12 = 8,676.32/x
  3. Step 3: Cross multiply
    14,218.31x = 21,315.12 × 8,676.32
  4. Step 4: Simplify right side
    14,218.31x = 184,936,736.05
  5. Step 5: Solve for x
    x = 184,936,736.05/14,218.31
  6. Step 6: Final answer
    x = 13,006.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.