Home / 11,331.36-15,638.54-6,855.30

Finding the Fourth Proportional to 11,331.36, 15,638.54 and 6,855.30

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Solution

The fourth proportional to 11,331.36, 15,638.54 and 6,855.30 is: 9,461.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.36 : 15,638.54 = 6,855.30 : x
  2. Step 2: Convert to fraction form
    11,331.36/15,638.54 = 6,855.30/x
  3. Step 3: Cross multiply
    11,331.36x = 15,638.54 × 6,855.30
  4. Step 4: Simplify right side
    11,331.36x = 107,206,848.99
  5. Step 5: Solve for x
    x = 107,206,848.99/11,331.36
  6. Step 6: Final answer
    x = 9,461.08

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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.