Home / 18,930.02-28,376.94-7,080.58

Finding the Fourth Proportional to 18,930.02, 28,376.94 and 7,080.58

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Solution

The fourth proportional to 18,930.02, 28,376.94 and 7,080.58 is: 10,614.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,930.02 : 28,376.94 = 7,080.58 : x
  2. Step 2: Convert to fraction form
    18,930.02/28,376.94 = 7,080.58/x
  3. Step 3: Cross multiply
    18,930.02x = 28,376.94 × 7,080.58
  4. Step 4: Simplify right side
    18,930.02x = 200,925,076.31
  5. Step 5: Solve for x
    x = 200,925,076.31/18,930.02
  6. Step 6: Final answer
    x = 10,614.10

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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.