Home / 14,109.90-21,167.25-4,750.80

Finding the Fourth Proportional to 14,109.90, 21,167.25 and 4,750.80

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Solution

The fourth proportional to 14,109.90, 21,167.25 and 4,750.80 is: 7,127.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.90 : 21,167.25 = 4,750.80 : x
  2. Step 2: Convert to fraction form
    14,109.90/21,167.25 = 4,750.80/x
  3. Step 3: Cross multiply
    14,109.90x = 21,167.25 × 4,750.80
  4. Step 4: Simplify right side
    14,109.90x = 100,561,371.30
  5. Step 5: Solve for x
    x = 100,561,371.30/14,109.90
  6. Step 6: Final answer
    x = 7,127.01

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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.