Home / 11,260.24-16,890.40-6,640

Finding the Fourth Proportional to 11,260.24, 16,890.40 and 6,640

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Solution

The fourth proportional to 11,260.24, 16,890.40 and 6,640 is: 9,960.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,260.24 : 16,890.40 = 6,640 : x
  2. Step 2: Convert to fraction form
    11,260.24/16,890.40 = 6,640/x
  3. Step 3: Cross multiply
    11,260.24x = 16,890.40 × 6,640
  4. Step 4: Simplify right side
    11,260.24x = 112,152,256.00
  5. Step 5: Solve for x
    x = 112,152,256.00/11,260.24
  6. Step 6: Final answer
    x = 9,960.02

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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.