Home / 14,134.01-21,167.33-7,878.51

Finding the Fourth Proportional to 14,134.01, 21,167.33 and 7,878.51

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Solution

The fourth proportional to 14,134.01, 21,167.33 and 7,878.51 is: 11,798.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,134.01 : 21,167.33 = 7,878.51 : x
  2. Step 2: Convert to fraction form
    14,134.01/21,167.33 = 7,878.51/x
  3. Step 3: Cross multiply
    14,134.01x = 21,167.33 × 7,878.51
  4. Step 4: Simplify right side
    14,134.01x = 166,766,981.69
  5. Step 5: Solve for x
    x = 166,766,981.69/14,134.01
  6. Step 6: Final answer
    x = 11,798.99

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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.