Home / 15,634.46-21,576.69-10,320.05

Finding the Fourth Proportional to 15,634.46, 21,576.69 and 10,320.05

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Solution

The fourth proportional to 15,634.46, 21,576.69 and 10,320.05 is: 14,242.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,634.46 : 21,576.69 = 10,320.05 : x
  2. Step 2: Convert to fraction form
    15,634.46/21,576.69 = 10,320.05/x
  3. Step 3: Cross multiply
    15,634.46x = 21,576.69 × 10,320.05
  4. Step 4: Simplify right side
    15,634.46x = 222,672,411.75
  5. Step 5: Solve for x
    x = 222,672,411.75/15,634.46
  6. Step 6: Final answer
    x = 14,242.42

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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.