Home / 11,201.90-16,802.85-9,992.30

Finding the Fourth Proportional to 11,201.90, 16,802.85 and 9,992.30

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Solution

The fourth proportional to 11,201.90, 16,802.85 and 9,992.30 is: 14,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,201.90 : 16,802.85 = 9,992.30 : x
  2. Step 2: Convert to fraction form
    11,201.90/16,802.85 = 9,992.30/x
  3. Step 3: Cross multiply
    11,201.90x = 16,802.85 × 9,992.30
  4. Step 4: Simplify right side
    11,201.90x = 167,899,118.06
  5. Step 5: Solve for x
    x = 167,899,118.06/11,201.90
  6. Step 6: Final answer
    x = 14,988.45

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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.