Home / 14,911.43-20,578.16-8,197.23

Finding the Fourth Proportional to 14,911.43, 20,578.16 and 8,197.23

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Solution

The fourth proportional to 14,911.43, 20,578.16 and 8,197.23 is: 11,312.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,911.43 : 20,578.16 = 8,197.23 : x
  2. Step 2: Convert to fraction form
    14,911.43/20,578.16 = 8,197.23/x
  3. Step 3: Cross multiply
    14,911.43x = 20,578.16 × 8,197.23
  4. Step 4: Simplify right side
    14,911.43x = 168,683,869.51
  5. Step 5: Solve for x
    x = 168,683,869.51/14,911.43
  6. Step 6: Final answer
    x = 11,312.39

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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.