Home / 18,359.45-25,335.93-9,975.95

Finding the Fourth Proportional to 18,359.45, 25,335.93 and 9,975.95

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Solution

The fourth proportional to 18,359.45, 25,335.93 and 9,975.95 is: 13,766.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359.45 : 25,335.93 = 9,975.95 : x
  2. Step 2: Convert to fraction form
    18,359.45/25,335.93 = 9,975.95/x
  3. Step 3: Cross multiply
    18,359.45x = 25,335.93 × 9,975.95
  4. Step 4: Simplify right side
    18,359.45x = 252,749,844.20
  5. Step 5: Solve for x
    x = 252,749,844.20/18,359.45
  6. Step 6: Final answer
    x = 13,766.75

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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.