Home / 19,376-26,743.74-11,415.32

Finding the Fourth Proportional to 19,376, 26,743.74 and 11,415.32

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Solution

The fourth proportional to 19,376, 26,743.74 and 11,415.32 is: 15,756.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,376 : 26,743.74 = 11,415.32 : x
  2. Step 2: Convert to fraction form
    19,376/26,743.74 = 11,415.32/x
  3. Step 3: Cross multiply
    19,376x = 26,743.74 × 11,415.32
  4. Step 4: Simplify right side
    19,376x = 305,288,350.10
  5. Step 5: Solve for x
    x = 305,288,350.10/19,376
  6. Step 6: Final answer
    x = 15,756.00

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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.