Home / 13,272.12-18,304.92-9,293.40

Finding the Fourth Proportional to 13,272.12, 18,304.92 and 9,293.40

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Solution

The fourth proportional to 13,272.12, 18,304.92 and 9,293.40 is: 12,817.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.12 : 18,304.92 = 9,293.40 : x
  2. Step 2: Convert to fraction form
    13,272.12/18,304.92 = 9,293.40/x
  3. Step 3: Cross multiply
    13,272.12x = 18,304.92 × 9,293.40
  4. Step 4: Simplify right side
    13,272.12x = 170,114,943.53
  5. Step 5: Solve for x
    x = 170,114,943.53/13,272.12
  6. Step 6: Final answer
    x = 12,817.47

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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.