Home / 12,161.01-18,228.15-4,764.09

Finding the Fourth Proportional to 12,161.01, 18,228.15 and 4,764.09

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Solution

The fourth proportional to 12,161.01, 18,228.15 and 4,764.09 is: 7,140.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.01 : 18,228.15 = 4,764.09 : x
  2. Step 2: Convert to fraction form
    12,161.01/18,228.15 = 4,764.09/x
  3. Step 3: Cross multiply
    12,161.01x = 18,228.15 × 4,764.09
  4. Step 4: Simplify right side
    12,161.01x = 86,840,547.13
  5. Step 5: Solve for x
    x = 86,840,547.13/12,161.01
  6. Step 6: Final answer
    x = 7,140.90

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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.