Home / 13,775.36-18,999.25-9,236.52

Finding the Fourth Proportional to 13,775.36, 18,999.25 and 9,236.52

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Solution

The fourth proportional to 13,775.36, 18,999.25 and 9,236.52 is: 12,739.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.36 : 18,999.25 = 9,236.52 : x
  2. Step 2: Convert to fraction form
    13,775.36/18,999.25 = 9,236.52/x
  3. Step 3: Cross multiply
    13,775.36x = 18,999.25 × 9,236.52
  4. Step 4: Simplify right side
    13,775.36x = 175,486,929.52
  5. Step 5: Solve for x
    x = 175,486,929.52/13,775.36
  6. Step 6: Final answer
    x = 12,739.19

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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.