Home / 13,255.33-18,292.54-7,287.55

Finding the Fourth Proportional to 13,255.33, 18,292.54 and 7,287.55

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Solution

The fourth proportional to 13,255.33, 18,292.54 and 7,287.55 is: 10,056.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.33 : 18,292.54 = 7,287.55 : x
  2. Step 2: Convert to fraction form
    13,255.33/18,292.54 = 7,287.55/x
  3. Step 3: Cross multiply
    13,255.33x = 18,292.54 × 7,287.55
  4. Step 4: Simplify right side
    13,255.33x = 133,307,690.20
  5. Step 5: Solve for x
    x = 133,307,690.20/13,255.33
  6. Step 6: Final answer
    x = 10,056.92

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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.