Home / 19,129.66-26,396.58-11,166.10

Finding the Fourth Proportional to 19,129.66, 26,396.58 and 11,166.10

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Solution

The fourth proportional to 19,129.66, 26,396.58 and 11,166.10 is: 15,407.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,129.66 : 26,396.58 = 11,166.10 : x
  2. Step 2: Convert to fraction form
    19,129.66/26,396.58 = 11,166.10/x
  3. Step 3: Cross multiply
    19,129.66x = 26,396.58 × 11,166.10
  4. Step 4: Simplify right side
    19,129.66x = 294,746,851.94
  5. Step 5: Solve for x
    x = 294,746,851.94/19,129.66
  6. Step 6: Final answer
    x = 15,407.85

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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.