Home / 13,172.84-18,176.52-7,430.04

Finding the Fourth Proportional to 13,172.84, 18,176.52 and 7,430.04

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Solution

The fourth proportional to 13,172.84, 18,176.52 and 7,430.04 is: 10,252.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.84 : 18,176.52 = 7,430.04 : x
  2. Step 2: Convert to fraction form
    13,172.84/18,176.52 = 7,430.04/x
  3. Step 3: Cross multiply
    13,172.84x = 18,176.52 × 7,430.04
  4. Step 4: Simplify right side
    13,172.84x = 135,052,270.66
  5. Step 5: Solve for x
    x = 135,052,270.66/13,172.84
  6. Step 6: Final answer
    x = 10,252.33

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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.