Home / 16,778.36-23,154.41-9,225

Finding the Fourth Proportional to 16,778.36, 23,154.41 and 9,225

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Solution

The fourth proportional to 16,778.36, 23,154.41 and 9,225 is: 12,730.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,778.36 : 23,154.41 = 9,225 : x
  2. Step 2: Convert to fraction form
    16,778.36/23,154.41 = 9,225/x
  3. Step 3: Cross multiply
    16,778.36x = 23,154.41 × 9,225
  4. Step 4: Simplify right side
    16,778.36x = 213,599,386.13
  5. Step 5: Solve for x
    x = 213,599,386.13/16,778.36
  6. Step 6: Final answer
    x = 12,730.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.