Home / 10,872.48-16,308.96-9,240.48

Finding the Fourth Proportional to 10,872.48, 16,308.96 and 9,240.48

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Solution

The fourth proportional to 10,872.48, 16,308.96 and 9,240.48 is: 13,860.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.48 : 16,308.96 = 9,240.48 : x
  2. Step 2: Convert to fraction form
    10,872.48/16,308.96 = 9,240.48/x
  3. Step 3: Cross multiply
    10,872.48x = 16,308.96 × 9,240.48
  4. Step 4: Simplify right side
    10,872.48x = 150,702,618.70
  5. Step 5: Solve for x
    x = 150,702,618.70/10,872.48
  6. Step 6: Final answer
    x = 13,860.92

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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.