Home / 18,328.81-25,293.76-9,945.31

Finding the Fourth Proportional to 18,328.81, 25,293.76 and 9,945.31

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Solution

The fourth proportional to 18,328.81, 25,293.76 and 9,945.31 is: 13,724.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,328.81 : 25,293.76 = 9,945.31 : x
  2. Step 2: Convert to fraction form
    18,328.81/25,293.76 = 9,945.31/x
  3. Step 3: Cross multiply
    18,328.81x = 25,293.76 × 9,945.31
  4. Step 4: Simplify right side
    18,328.81x = 251,554,359.93
  5. Step 5: Solve for x
    x = 251,554,359.93/18,328.81
  6. Step 6: Final answer
    x = 13,724.53

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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.