Home / 11,870.45-17,809.80-4,477.04

Finding the Fourth Proportional to 11,870.45, 17,809.80 and 4,477.04

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Solution

The fourth proportional to 11,870.45, 17,809.80 and 4,477.04 is: 6,717.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,870.45 : 17,809.80 = 4,477.04 : x
  2. Step 2: Convert to fraction form
    11,870.45/17,809.80 = 4,477.04/x
  3. Step 3: Cross multiply
    11,870.45x = 17,809.80 × 4,477.04
  4. Step 4: Simplify right side
    11,870.45x = 79,735,186.99
  5. Step 5: Solve for x
    x = 79,735,186.99/11,870.45
  6. Step 6: Final answer
    x = 6,717.12

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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.