Home / 15,203.91-22,805.87-12,145.35

Finding the Fourth Proportional to 15,203.91, 22,805.87 and 12,145.35

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Solution

The fourth proportional to 15,203.91, 22,805.87 and 12,145.35 is: 18,218.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,203.91 : 22,805.87 = 12,145.35 : x
  2. Step 2: Convert to fraction form
    15,203.91/22,805.87 = 12,145.35/x
  3. Step 3: Cross multiply
    15,203.91x = 22,805.87 × 12,145.35
  4. Step 4: Simplify right side
    15,203.91x = 276,985,212.48
  5. Step 5: Solve for x
    x = 276,985,212.48/15,203.91
  6. Step 6: Final answer
    x = 18,218.03

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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.