Home / 18,784.20-25,925.10-10,825.80

Finding the Fourth Proportional to 18,784.20, 25,925.10 and 10,825.80

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Solution

The fourth proportional to 18,784.20, 25,925.10 and 10,825.80 is: 14,941.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,784.20 : 25,925.10 = 10,825.80 : x
  2. Step 2: Convert to fraction form
    18,784.20/25,925.10 = 10,825.80/x
  3. Step 3: Cross multiply
    18,784.20x = 25,925.10 × 10,825.80
  4. Step 4: Simplify right side
    18,784.20x = 280,659,947.58
  5. Step 5: Solve for x
    x = 280,659,947.58/18,784.20
  6. Step 6: Final answer
    x = 14,941.28

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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.