Home / 14,985.09-20,679.14-8,270.33

Finding the Fourth Proportional to 14,985.09, 20,679.14 and 8,270.33

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Solution

The fourth proportional to 14,985.09, 20,679.14 and 8,270.33 is: 11,412.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,985.09 : 20,679.14 = 8,270.33 : x
  2. Step 2: Convert to fraction form
    14,985.09/20,679.14 = 8,270.33/x
  3. Step 3: Cross multiply
    14,985.09x = 20,679.14 × 8,270.33
  4. Step 4: Simplify right side
    14,985.09x = 171,023,229.20
  5. Step 5: Solve for x
    x = 171,023,229.20/14,985.09
  6. Step 6: Final answer
    x = 11,412.89

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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.