Home / 11,125.06-16,669.16-7,822.02

Finding the Fourth Proportional to 11,125.06, 16,669.16 and 7,822.02

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Solution

The fourth proportional to 11,125.06, 16,669.16 and 7,822.02 is: 11,720.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.06 : 16,669.16 = 7,822.02 : x
  2. Step 2: Convert to fraction form
    11,125.06/16,669.16 = 7,822.02/x
  3. Step 3: Cross multiply
    11,125.06x = 16,669.16 × 7,822.02
  4. Step 4: Simplify right side
    11,125.06x = 130,386,439.11
  5. Step 5: Solve for x
    x = 130,386,439.11/11,125.06
  6. Step 6: Final answer
    x = 11,720.07

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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.