Home / 8,782.84-13,173.54-2,938.69

Finding the Fourth Proportional to 8,782.84, 13,173.54 and 2,938.69

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Solution

The fourth proportional to 8,782.84, 13,173.54 and 2,938.69 is: 4,407.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782.84 : 13,173.54 = 2,938.69 : x
  2. Step 2: Convert to fraction form
    8,782.84/13,173.54 = 2,938.69/x
  3. Step 3: Cross multiply
    8,782.84x = 13,173.54 × 2,938.69
  4. Step 4: Simplify right side
    8,782.84x = 38,712,950.26
  5. Step 5: Solve for x
    x = 38,712,950.26/8,782.84
  6. Step 6: Final answer
    x = 4,407.79

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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.