Home / 16,800.90-25,200.33-7,438.18

Finding the Fourth Proportional to 16,800.90, 25,200.33 and 7,438.18

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Solution

The fourth proportional to 16,800.90, 25,200.33 and 7,438.18 is: 11,156.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,800.90 : 25,200.33 = 7,438.18 : x
  2. Step 2: Convert to fraction form
    16,800.90/25,200.33 = 7,438.18/x
  3. Step 3: Cross multiply
    16,800.90x = 25,200.33 × 7,438.18
  4. Step 4: Simplify right side
    16,800.90x = 187,444,590.60
  5. Step 5: Solve for x
    x = 187,444,590.60/16,800.90
  6. Step 6: Final answer
    x = 11,156.82

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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.