Home / 13,401.02-18,498.21-9,149.04

Finding the Fourth Proportional to 13,401.02, 18,498.21 and 9,149.04

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Solution

The fourth proportional to 13,401.02, 18,498.21 and 9,149.04 is: 12,628.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,401.02 : 18,498.21 = 9,149.04 : x
  2. Step 2: Convert to fraction form
    13,401.02/18,498.21 = 9,149.04/x
  3. Step 3: Cross multiply
    13,401.02x = 18,498.21 × 9,149.04
  4. Step 4: Simplify right side
    13,401.02x = 169,240,863.22
  5. Step 5: Solve for x
    x = 169,240,863.22/13,401.02
  6. Step 6: Final answer
    x = 12,628.95

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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.