Home / 13,343.97-18,415.05-7,376.01

Finding the Fourth Proportional to 13,343.97, 18,415.05 and 7,376.01

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Solution

The fourth proportional to 13,343.97, 18,415.05 and 7,376.01 is: 10,179.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.97 : 18,415.05 = 7,376.01 : x
  2. Step 2: Convert to fraction form
    13,343.97/18,415.05 = 7,376.01/x
  3. Step 3: Cross multiply
    13,343.97x = 18,415.05 × 7,376.01
  4. Step 4: Simplify right side
    13,343.97x = 135,829,592.95
  5. Step 5: Solve for x
    x = 135,829,592.95/13,343.97
  6. Step 6: Final answer
    x = 10,179.10

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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.