Home / 18,336.48-25,315.92-13,615.20

Finding the Fourth Proportional to 18,336.48, 25,315.92 and 13,615.20

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Solution

The fourth proportional to 18,336.48, 25,315.92 and 13,615.20 is: 18,797.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,336.48 : 25,315.92 = 13,615.20 : x
  2. Step 2: Convert to fraction form
    18,336.48/25,315.92 = 13,615.20/x
  3. Step 3: Cross multiply
    18,336.48x = 25,315.92 × 13,615.20
  4. Step 4: Simplify right side
    18,336.48x = 344,681,313.98
  5. Step 5: Solve for x
    x = 344,681,313.98/18,336.48
  6. Step 6: Final answer
    x = 18,797.57

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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.