Home / 13,020.66-17,969.40-7,353.45

Finding the Fourth Proportional to 13,020.66, 17,969.40 and 7,353.45

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Solution

The fourth proportional to 13,020.66, 17,969.40 and 7,353.45 is: 10,148.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.66 : 17,969.40 = 7,353.45 : x
  2. Step 2: Convert to fraction form
    13,020.66/17,969.40 = 7,353.45/x
  3. Step 3: Cross multiply
    13,020.66x = 17,969.40 × 7,353.45
  4. Step 4: Simplify right side
    13,020.66x = 132,137,084.43
  5. Step 5: Solve for x
    x = 132,137,084.43/13,020.66
  6. Step 6: Final answer
    x = 10,148.26

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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.