Home / 19,130.70-26,396.25-11,169.31

Finding the Fourth Proportional to 19,130.70, 26,396.25 and 11,169.31

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Solution

The fourth proportional to 19,130.70, 26,396.25 and 11,169.31 is: 15,411.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,130.70 : 26,396.25 = 11,169.31 : x
  2. Step 2: Convert to fraction form
    19,130.70/26,396.25 = 11,169.31/x
  3. Step 3: Cross multiply
    19,130.70x = 26,396.25 × 11,169.31
  4. Step 4: Simplify right side
    19,130.70x = 294,827,899.09
  5. Step 5: Solve for x
    x = 294,827,899.09/19,130.70
  6. Step 6: Final answer
    x = 15,411.24

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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.