Home / 18,763.76-28,145.99-6,281.46

Finding the Fourth Proportional to 18,763.76, 28,145.99 and 6,281.46

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Solution

The fourth proportional to 18,763.76, 28,145.99 and 6,281.46 is: 9,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763.76 : 28,145.99 = 6,281.46 : x
  2. Step 2: Convert to fraction form
    18,763.76/28,145.99 = 6,281.46/x
  3. Step 3: Cross multiply
    18,763.76x = 28,145.99 × 6,281.46
  4. Step 4: Simplify right side
    18,763.76x = 176,797,878.94
  5. Step 5: Solve for x
    x = 176,797,878.94/18,763.76
  6. Step 6: Final answer
    x = 9,422.30

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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.