Home / 18,825.18-28,237.29-4,974.30

Finding the Fourth Proportional to 18,825.18, 28,237.29 and 4,974.30

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Solution

The fourth proportional to 18,825.18, 28,237.29 and 4,974.30 is: 7,461.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825.18 : 28,237.29 = 4,974.30 : x
  2. Step 2: Convert to fraction form
    18,825.18/28,237.29 = 4,974.30/x
  3. Step 3: Cross multiply
    18,825.18x = 28,237.29 × 4,974.30
  4. Step 4: Simplify right side
    18,825.18x = 140,460,751.65
  5. Step 5: Solve for x
    x = 140,460,751.65/18,825.18
  6. Step 6: Final answer
    x = 7,461.32

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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.