Home / 11,345.50-17,007.87-4,772.15

Finding the Fourth Proportional to 11,345.50, 17,007.87 and 4,772.15

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Solution

The fourth proportional to 11,345.50, 17,007.87 and 4,772.15 is: 7,153.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.50 : 17,007.87 = 4,772.15 : x
  2. Step 2: Convert to fraction form
    11,345.50/17,007.87 = 4,772.15/x
  3. Step 3: Cross multiply
    11,345.50x = 17,007.87 × 4,772.15
  4. Step 4: Simplify right side
    11,345.50x = 81,164,103.46
  5. Step 5: Solve for x
    x = 81,164,103.46/11,345.50
  6. Step 6: Final answer
    x = 7,153.86

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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.