Home / 10,421.97-14,383.08-6,879.03

Finding the Fourth Proportional to 10,421.97, 14,383.08 and 6,879.03

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Solution

The fourth proportional to 10,421.97, 14,383.08 and 6,879.03 is: 9,493.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.97 : 14,383.08 = 6,879.03 : x
  2. Step 2: Convert to fraction form
    10,421.97/14,383.08 = 6,879.03/x
  3. Step 3: Cross multiply
    10,421.97x = 14,383.08 × 6,879.03
  4. Step 4: Simplify right side
    10,421.97x = 98,941,638.81
  5. Step 5: Solve for x
    x = 98,941,638.81/10,421.97
  6. Step 6: Final answer
    x = 9,493.56

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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.