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Finding the Fourth Proportional to 15,941.91, 22,000.03 and 9,135.80

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Solution

The fourth proportional to 15,941.91, 22,000.03 and 9,135.80 is: 12,607.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,941.91 : 22,000.03 = 9,135.80 : x
  2. Step 2: Convert to fraction form
    15,941.91/22,000.03 = 9,135.80/x
  3. Step 3: Cross multiply
    15,941.91x = 22,000.03 × 9,135.80
  4. Step 4: Simplify right side
    15,941.91x = 200,987,828.40
  5. Step 5: Solve for x
    x = 200,987,828.40/15,941.91
  6. Step 6: Final answer
    x = 12,607.51

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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.