Home / 11,136.88-16,713.36-8,971.76

Finding the Fourth Proportional to 11,136.88, 16,713.36 and 8,971.76

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Solution

The fourth proportional to 11,136.88, 16,713.36 and 8,971.76 is: 13,464.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.88 : 16,713.36 = 8,971.76 : x
  2. Step 2: Convert to fraction form
    11,136.88/16,713.36 = 8,971.76/x
  3. Step 3: Cross multiply
    11,136.88x = 16,713.36 × 8,971.76
  4. Step 4: Simplify right side
    11,136.88x = 149,948,254.71
  5. Step 5: Solve for x
    x = 149,948,254.71/11,136.88
  6. Step 6: Final answer
    x = 13,464.12

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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.