Home / 8,756.84-13,136.16-2,911.88

Finding the Fourth Proportional to 8,756.84, 13,136.16 and 2,911.88

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Solution

The fourth proportional to 8,756.84, 13,136.16 and 2,911.88 is: 4,368.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.84 : 13,136.16 = 2,911.88 : x
  2. Step 2: Convert to fraction form
    8,756.84/13,136.16 = 2,911.88/x
  3. Step 3: Cross multiply
    8,756.84x = 13,136.16 × 2,911.88
  4. Step 4: Simplify right side
    8,756.84x = 38,250,921.58
  5. Step 5: Solve for x
    x = 38,250,921.58/8,756.84
  6. Step 6: Final answer
    x = 4,368.12

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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.