Home / 13,447.02-18,546.39-9,200.61

Finding the Fourth Proportional to 13,447.02, 18,546.39 and 9,200.61

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Solution

The fourth proportional to 13,447.02, 18,546.39 and 9,200.61 is: 12,689.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.02 : 18,546.39 = 9,200.61 : x
  2. Step 2: Convert to fraction form
    13,447.02/18,546.39 = 9,200.61/x
  3. Step 3: Cross multiply
    13,447.02x = 18,546.39 × 9,200.61
  4. Step 4: Simplify right side
    13,447.02x = 170,638,101.30
  5. Step 5: Solve for x
    x = 170,638,101.30/13,447.02
  6. Step 6: Final answer
    x = 12,689.66

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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.