Home / 13,255.90-18,292.37-7,287.57

Finding the Fourth Proportional to 13,255.90, 18,292.37 and 7,287.57

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Solution

The fourth proportional to 13,255.90, 18,292.37 and 7,287.57 is: 10,056.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.90 : 18,292.37 = 7,287.57 : x
  2. Step 2: Convert to fraction form
    13,255.90/18,292.37 = 7,287.57/x
  3. Step 3: Cross multiply
    13,255.90x = 18,292.37 × 7,287.57
  4. Step 4: Simplify right side
    13,255.90x = 133,306,798.94
  5. Step 5: Solve for x
    x = 133,306,798.94/13,255.90
  6. Step 6: Final answer
    x = 10,056.41

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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.