Home / 13,272.39-18,316.38-7,304.51

Finding the Fourth Proportional to 13,272.39, 18,316.38 and 7,304.51

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Solution

The fourth proportional to 13,272.39, 18,316.38 and 7,304.51 is: 10,080.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.39 : 18,316.38 = 7,304.51 : x
  2. Step 2: Convert to fraction form
    13,272.39/18,316.38 = 7,304.51/x
  3. Step 3: Cross multiply
    13,272.39x = 18,316.38 × 7,304.51
  4. Step 4: Simplify right side
    13,272.39x = 133,792,052.77
  5. Step 5: Solve for x
    x = 133,792,052.77/13,272.39
  6. Step 6: Final answer
    x = 10,080.48

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Half scale
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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.