Home / 11,345.40-17,007.30-8,845.20

Finding the Fourth Proportional to 11,345.40, 17,007.30 and 8,845.20

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Solution

The fourth proportional to 11,345.40, 17,007.30 and 8,845.20 is: 13,259.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.40 : 17,007.30 = 8,845.20 : x
  2. Step 2: Convert to fraction form
    11,345.40/17,007.30 = 8,845.20/x
  3. Step 3: Cross multiply
    11,345.40x = 17,007.30 × 8,845.20
  4. Step 4: Simplify right side
    11,345.40x = 150,432,969.96
  5. Step 5: Solve for x
    x = 150,432,969.96/11,345.40
  6. Step 6: Final answer
    x = 13,259.38

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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.