Home / 13,243.44-18,275.04-7,935.60

Finding the Fourth Proportional to 13,243.44, 18,275.04 and 7,935.60

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Solution

The fourth proportional to 13,243.44, 18,275.04 and 7,935.60 is: 10,950.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.44 : 18,275.04 = 7,935.60 : x
  2. Step 2: Convert to fraction form
    13,243.44/18,275.04 = 7,935.60/x
  3. Step 3: Cross multiply
    13,243.44x = 18,275.04 × 7,935.60
  4. Step 4: Simplify right side
    13,243.44x = 145,023,407.42
  5. Step 5: Solve for x
    x = 145,023,407.42/13,243.44
  6. Step 6: Final answer
    x = 10,950.58

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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.