Home / 10,872.90-16,307.64-9,035.82

Finding the Fourth Proportional to 10,872.90, 16,307.64 and 9,035.82

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Solution

The fourth proportional to 10,872.90, 16,307.64 and 9,035.82 is: 13,552.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.90 : 16,307.64 = 9,035.82 : x
  2. Step 2: Convert to fraction form
    10,872.90/16,307.64 = 9,035.82/x
  3. Step 3: Cross multiply
    10,872.90x = 16,307.64 × 9,035.82
  4. Step 4: Simplify right side
    10,872.90x = 147,352,899.66
  5. Step 5: Solve for x
    x = 147,352,899.66/10,872.90
  6. Step 6: Final answer
    x = 13,552.31

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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.