Home / 18,925.54-28,380.75-9,057.58

Finding the Fourth Proportional to 18,925.54, 28,380.75 and 9,057.58

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Solution

The fourth proportional to 18,925.54, 28,380.75 and 9,057.58 is: 13,582.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,925.54 : 28,380.75 = 9,057.58 : x
  2. Step 2: Convert to fraction form
    18,925.54/28,380.75 = 9,057.58/x
  3. Step 3: Cross multiply
    18,925.54x = 28,380.75 × 9,057.58
  4. Step 4: Simplify right side
    18,925.54x = 257,060,913.59
  5. Step 5: Solve for x
    x = 257,060,913.59/18,925.54
  6. Step 6: Final answer
    x = 13,582.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.