Home / 13,255.47-18,292.91-7,287.39

Finding the Fourth Proportional to 13,255.47, 18,292.91 and 7,287.39

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Solution

The fourth proportional to 13,255.47, 18,292.91 and 7,287.39 is: 10,056.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.47 : 18,292.91 = 7,287.39 : x
  2. Step 2: Convert to fraction form
    13,255.47/18,292.91 = 7,287.39/x
  3. Step 3: Cross multiply
    13,255.47x = 18,292.91 × 7,287.39
  4. Step 4: Simplify right side
    13,255.47x = 133,307,532.97
  5. Step 5: Solve for x
    x = 133,307,532.97/13,255.47
  6. Step 6: Final answer
    x = 10,056.79

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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.