Home / 13,199.28-18,214.41-7,897.02

Finding the Fourth Proportional to 13,199.28, 18,214.41 and 7,897.02

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Solution

The fourth proportional to 13,199.28, 18,214.41 and 7,897.02 is: 10,897.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.28 : 18,214.41 = 7,897.02 : x
  2. Step 2: Convert to fraction form
    13,199.28/18,214.41 = 7,897.02/x
  3. Step 3: Cross multiply
    13,199.28x = 18,214.41 × 7,897.02
  4. Step 4: Simplify right side
    13,199.28x = 143,839,560.06
  5. Step 5: Solve for x
    x = 143,839,560.06/13,199.28
  6. Step 6: Final answer
    x = 10,897.53

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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.