Home / 13,003.20-17,929.22-12,302.55

Finding the Fourth Proportional to 13,003.20, 17,929.22 and 12,302.55

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Solution

The fourth proportional to 13,003.20, 17,929.22 and 12,302.55 is: 16,963.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,003.20 : 17,929.22 = 12,302.55 : x
  2. Step 2: Convert to fraction form
    13,003.20/17,929.22 = 12,302.55/x
  3. Step 3: Cross multiply
    13,003.20x = 17,929.22 × 12,302.55
  4. Step 4: Simplify right side
    13,003.20x = 220,575,064.00
  5. Step 5: Solve for x
    x = 220,575,064.00/13,003.20
  6. Step 6: Final answer
    x = 16,963.14

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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.