Home / 13,740.36-18,954.72-8,696.08

Finding the Fourth Proportional to 13,740.36, 18,954.72 and 8,696.08

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Solution

The fourth proportional to 13,740.36, 18,954.72 and 8,696.08 is: 11,996.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740.36 : 18,954.72 = 8,696.08 : x
  2. Step 2: Convert to fraction form
    13,740.36/18,954.72 = 8,696.08/x
  3. Step 3: Cross multiply
    13,740.36x = 18,954.72 × 8,696.08
  4. Step 4: Simplify right side
    13,740.36x = 164,831,761.50
  5. Step 5: Solve for x
    x = 164,831,761.50/13,740.36
  6. Step 6: Final answer
    x = 11,996.17

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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.