Home / 13,736.02-18,962.74-8,705.38

Finding the Fourth Proportional to 13,736.02, 18,962.74 and 8,705.38

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Solution

The fourth proportional to 13,736.02, 18,962.74 and 8,705.38 is: 12,017.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,736.02 : 18,962.74 = 8,705.38 : x
  2. Step 2: Convert to fraction form
    13,736.02/18,962.74 = 8,705.38/x
  3. Step 3: Cross multiply
    13,736.02x = 18,962.74 × 8,705.38
  4. Step 4: Simplify right side
    13,736.02x = 165,077,857.54
  5. Step 5: Solve for x
    x = 165,077,857.54/13,736.02
  6. Step 6: Final answer
    x = 12,017.88

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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.