Home / 13,343.09-18,412.18-7,373.79

Finding the Fourth Proportional to 13,343.09, 18,412.18 and 7,373.79

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Solution

The fourth proportional to 13,343.09, 18,412.18 and 7,373.79 is: 10,175.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.09 : 18,412.18 = 7,373.79 : x
  2. Step 2: Convert to fraction form
    13,343.09/18,412.18 = 7,373.79/x
  3. Step 3: Cross multiply
    13,343.09x = 18,412.18 × 7,373.79
  4. Step 4: Simplify right side
    13,343.09x = 135,767,548.76
  5. Step 5: Solve for x
    x = 135,767,548.76/13,343.09
  6. Step 6: Final answer
    x = 10,175.12

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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.