Home / 13,255.85-18,293.51-7,287.98

Finding the Fourth Proportional to 13,255.85, 18,293.51 and 7,287.98

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Solution

The fourth proportional to 13,255.85, 18,293.51 and 7,287.98 is: 10,057.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.85 : 18,293.51 = 7,287.98 : x
  2. Step 2: Convert to fraction form
    13,255.85/18,293.51 = 7,287.98/x
  3. Step 3: Cross multiply
    13,255.85x = 18,293.51 × 7,287.98
  4. Step 4: Simplify right side
    13,255.85x = 133,322,661.76
  5. Step 5: Solve for x
    x = 133,322,661.76/13,255.85
  6. Step 6: Final answer
    x = 10,057.65

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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.