Home / 15,829.08-21,846.39-9,114.03

Finding the Fourth Proportional to 15,829.08, 21,846.39 and 9,114.03

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Solution

The fourth proportional to 15,829.08, 21,846.39 and 9,114.03 is: 12,578.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,829.08 : 21,846.39 = 9,114.03 : x
  2. Step 2: Convert to fraction form
    15,829.08/21,846.39 = 9,114.03/x
  3. Step 3: Cross multiply
    15,829.08x = 21,846.39 × 9,114.03
  4. Step 4: Simplify right side
    15,829.08x = 199,108,653.85
  5. Step 5: Solve for x
    x = 199,108,653.85/15,829.08
  6. Step 6: Final answer
    x = 12,578.66

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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.