Home / 10,783.80-16,175.70-9,358.20

Finding the Fourth Proportional to 10,783.80, 16,175.70 and 9,358.20

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Solution

The fourth proportional to 10,783.80, 16,175.70 and 9,358.20 is: 14,037.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,783.80 : 16,175.70 = 9,358.20 : x
  2. Step 2: Convert to fraction form
    10,783.80/16,175.70 = 9,358.20/x
  3. Step 3: Cross multiply
    10,783.80x = 16,175.70 × 9,358.20
  4. Step 4: Simplify right side
    10,783.80x = 151,375,435.74
  5. Step 5: Solve for x
    x = 151,375,435.74/10,783.80
  6. Step 6: Final answer
    x = 14,037.30

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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.