Home / 13,293.56-18,345.04-7,243.79

Finding the Fourth Proportional to 13,293.56, 18,345.04 and 7,243.79

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Solution

The fourth proportional to 13,293.56, 18,345.04 and 7,243.79 is: 9,996.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.56 : 18,345.04 = 7,243.79 : x
  2. Step 2: Convert to fraction form
    13,293.56/18,345.04 = 7,243.79/x
  3. Step 3: Cross multiply
    13,293.56x = 18,345.04 × 7,243.79
  4. Step 4: Simplify right side
    13,293.56x = 132,887,641.55
  5. Step 5: Solve for x
    x = 132,887,641.55/13,293.56
  6. Step 6: Final answer
    x = 9,996.39

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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.