Home / 13,243.48-18,273.84-7,577.32

Finding the Fourth Proportional to 13,243.48, 18,273.84 and 7,577.32

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Solution

The fourth proportional to 13,243.48, 18,273.84 and 7,577.32 is: 10,455.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.48 : 18,273.84 = 7,577.32 : x
  2. Step 2: Convert to fraction form
    13,243.48/18,273.84 = 7,577.32/x
  3. Step 3: Cross multiply
    13,243.48x = 18,273.84 × 7,577.32
  4. Step 4: Simplify right side
    13,243.48x = 138,466,733.31
  5. Step 5: Solve for x
    x = 138,466,733.31/13,243.48
  6. Step 6: Final answer
    x = 10,455.46

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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.