Home / 13,866.30-19,135.89-7,898.04

Finding the Fourth Proportional to 13,866.30, 19,135.89 and 7,898.04

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Solution

The fourth proportional to 13,866.30, 19,135.89 and 7,898.04 is: 10,899.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,866.30 : 19,135.89 = 7,898.04 : x
  2. Step 2: Convert to fraction form
    13,866.30/19,135.89 = 7,898.04/x
  3. Step 3: Cross multiply
    13,866.30x = 19,135.89 × 7,898.04
  4. Step 4: Simplify right side
    13,866.30x = 151,136,024.66
  5. Step 5: Solve for x
    x = 151,136,024.66/13,866.30
  6. Step 6: Final answer
    x = 10,899.52

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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.