Home / 13,755.07-20,632.59-4,987.09

Finding the Fourth Proportional to 13,755.07, 20,632.59 and 4,987.09

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Solution

The fourth proportional to 13,755.07, 20,632.59 and 4,987.09 is: 7,480.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.07 : 20,632.59 = 4,987.09 : x
  2. Step 2: Convert to fraction form
    13,755.07/20,632.59 = 4,987.09/x
  3. Step 3: Cross multiply
    13,755.07x = 20,632.59 × 4,987.09
  4. Step 4: Simplify right side
    13,755.07x = 102,896,583.26
  5. Step 5: Solve for x
    x = 102,896,583.26/13,755.07
  6. Step 6: Final answer
    x = 7,480.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.