Home / 16,778.16-23,154.40-9,224.80

Finding the Fourth Proportional to 16,778.16, 23,154.40 and 9,224.80

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Solution

The fourth proportional to 16,778.16, 23,154.40 and 9,224.80 is: 12,730.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,778.16 : 23,154.40 = 9,224.80 : x
  2. Step 2: Convert to fraction form
    16,778.16/23,154.40 = 9,224.80/x
  3. Step 3: Cross multiply
    16,778.16x = 23,154.40 × 9,224.80
  4. Step 4: Simplify right side
    16,778.16x = 213,594,709.12
  5. Step 5: Solve for x
    x = 213,594,709.12/16,778.16
  6. Step 6: Final answer
    x = 12,730.52

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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.