Home / 11,128.74-16,693.29-5,285.94

Finding the Fourth Proportional to 11,128.74, 16,693.29 and 5,285.94

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Solution

The fourth proportional to 11,128.74, 16,693.29 and 5,285.94 is: 7,929.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.74 : 16,693.29 = 5,285.94 : x
  2. Step 2: Convert to fraction form
    11,128.74/16,693.29 = 5,285.94/x
  3. Step 3: Cross multiply
    11,128.74x = 16,693.29 × 5,285.94
  4. Step 4: Simplify right side
    11,128.74x = 88,239,729.34
  5. Step 5: Solve for x
    x = 88,239,729.34/11,128.74
  6. Step 6: Final answer
    x = 7,929.00

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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.