Home / 13,020.36-17,967.70-7,431.08

Finding the Fourth Proportional to 13,020.36, 17,967.70 and 7,431.08

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Solution

The fourth proportional to 13,020.36, 17,967.70 and 7,431.08 is: 10,254.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.36 : 17,967.70 = 7,431.08 : x
  2. Step 2: Convert to fraction form
    13,020.36/17,967.70 = 7,431.08/x
  3. Step 3: Cross multiply
    13,020.36x = 17,967.70 × 7,431.08
  4. Step 4: Simplify right side
    13,020.36x = 133,519,416.12
  5. Step 5: Solve for x
    x = 133,519,416.12/13,020.36
  6. Step 6: Final answer
    x = 10,254.66

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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.