Home / 19,261.76-28,904.78-7,574.66

Finding the Fourth Proportional to 19,261.76, 28,904.78 and 7,574.66

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Solution

The fourth proportional to 19,261.76, 28,904.78 and 7,574.66 is: 11,366.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,261.76 : 28,904.78 = 7,574.66 : x
  2. Step 2: Convert to fraction form
    19,261.76/28,904.78 = 7,574.66/x
  3. Step 3: Cross multiply
    19,261.76x = 28,904.78 × 7,574.66
  4. Step 4: Simplify right side
    19,261.76x = 218,943,880.87
  5. Step 5: Solve for x
    x = 218,943,880.87/19,261.76
  6. Step 6: Final answer
    x = 11,366.76

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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.