Home / 13,167.42-18,171.12-7,199.34

Finding the Fourth Proportional to 13,167.42, 18,171.12 and 7,199.34

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Solution

The fourth proportional to 13,167.42, 18,171.12 and 7,199.34 is: 9,935.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,167.42 : 18,171.12 = 7,199.34 : x
  2. Step 2: Convert to fraction form
    13,167.42/18,171.12 = 7,199.34/x
  3. Step 3: Cross multiply
    13,167.42x = 18,171.12 × 7,199.34
  4. Step 4: Simplify right side
    13,167.42x = 130,820,071.06
  5. Step 5: Solve for x
    x = 130,820,071.06/13,167.42
  6. Step 6: Final answer
    x = 9,935.13

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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.