Home / 15,847.69-21,872.10-9,132.03

Finding the Fourth Proportional to 15,847.69, 21,872.10 and 9,132.03

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Solution

The fourth proportional to 15,847.69, 21,872.10 and 9,132.03 is: 12,603.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,847.69 : 21,872.10 = 9,132.03 : x
  2. Step 2: Convert to fraction form
    15,847.69/21,872.10 = 9,132.03/x
  3. Step 3: Cross multiply
    15,847.69x = 21,872.10 × 9,132.03
  4. Step 4: Simplify right side
    15,847.69x = 199,736,673.36
  5. Step 5: Solve for x
    x = 199,736,673.36/15,847.69
  6. Step 6: Final answer
    x = 12,603.52

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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.