Home / 18,767.79-28,147.57-6,289.58

Finding the Fourth Proportional to 18,767.79, 28,147.57 and 6,289.58

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Solution

The fourth proportional to 18,767.79, 28,147.57 and 6,289.58 is: 9,432.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,767.79 : 28,147.57 = 6,289.58 : x
  2. Step 2: Convert to fraction form
    18,767.79/28,147.57 = 6,289.58/x
  3. Step 3: Cross multiply
    18,767.79x = 28,147.57 × 6,289.58
  4. Step 4: Simplify right side
    18,767.79x = 177,036,393.32
  5. Step 5: Solve for x
    x = 177,036,393.32/18,767.79
  6. Step 6: Final answer
    x = 9,432.99

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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.