Home / 11,781.91-16,259.35-6,404.71

Finding the Fourth Proportional to 11,781.91, 16,259.35 and 6,404.71

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Solution

The fourth proportional to 11,781.91, 16,259.35 and 6,404.71 is: 8,838.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.91 : 16,259.35 = 6,404.71 : x
  2. Step 2: Convert to fraction form
    11,781.91/16,259.35 = 6,404.71/x
  3. Step 3: Cross multiply
    11,781.91x = 16,259.35 × 6,404.71
  4. Step 4: Simplify right side
    11,781.91x = 104,136,461.64
  5. Step 5: Solve for x
    x = 104,136,461.64/11,781.91
  6. Step 6: Final answer
    x = 8,838.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.