Home / 14,196.87-21,290.45-5,434.29

Finding the Fourth Proportional to 14,196.87, 21,290.45 and 5,434.29

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Solution

The fourth proportional to 14,196.87, 21,290.45 and 5,434.29 is: 8,149.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,196.87 : 21,290.45 = 5,434.29 : x
  2. Step 2: Convert to fraction form
    14,196.87/21,290.45 = 5,434.29/x
  3. Step 3: Cross multiply
    14,196.87x = 21,290.45 × 5,434.29
  4. Step 4: Simplify right side
    14,196.87x = 115,698,452.36
  5. Step 5: Solve for x
    x = 115,698,452.36/14,196.87
  6. Step 6: Final answer
    x = 8,149.57

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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.